Narrated Umar ibn al-Khattab: Umar said while he was (sitting) on the pulpit: O people, the opinion from the Messenger of Allah (ﷺ) was right, because Allah showed (i.e. inspired) him; but from us it is sheer conjecture and artifice.

Narrated Abdullah ibn az-Zubayr: The Messenger of Allah (ﷺ) gave the decision that the two adversaries should be made to sit in front of the judge.

'Abd al-Rahman bin Abi Bakrah reported on the authority of his father that he wrote to his son: The Messenger of Allah (ﷺ) said: A judge should not decide between the two while he is in anger.

Ibn 'Abbas said: The Qur'anic verse: "If they do come to thee, either judge between them, or decline to interfere" was abrogated by the verse: "So judge between them by what Allah hath revealed."

Narrated Abdullah ibn Abbas: When this verse was revealed: "If they do come to thee, either judge between them, or decline to interfere....If thou judge, judge in equity between them." Banu an-Nadir used to pay half blood-money if they killed any-one from Banu Qurayzah. When Banu Qurayzah killed anyone from Banu an-Nadir, they would pay full blood-money. So the Messenger of Allah (ﷺ) made it equal between them.

Some companions of Mu'adh ibn Jabal said: When the Messenger of Allah (ﷺ) intended to send Mu'adh ibn Jabal to the Yemen, he asked: How will you judge when the occasion of deciding a case arises? He replied: I shall judge in accordance with Allah's Book. He asked: (What will you do) if you do not find any guidance in Allah's Book? He replied: (I shall act) in accordance with the Sunnah of the Messenger of Allah (ﷺ). He asked: (What will you do) if you do not find any guidance in the Sunnah of the Messenger of Allah (ﷺ) and in Allah's Book? He replied: I shall do my best to form an opinion and I shall spare no effort. The Messenger of Allah (ﷺ) then patted him on the breast and said: Praise be to Allah Who has helped the messenger of the Messenger of Allah (ﷺ) to find something which pleases the Messenger of Allah.

Mu'adh bin Jabal said that when the Messenger of Allah (ﷺ) sent him to the Yemen... He then narrated the rest of the tradition to the same effect.

Narrated AbuHurayrah: The Prophet (ﷺ) said: Conciliation between Muslims is permissible. The narrator Ahmad added in his version: "except the conciliation which makes lawful unlawful and unlawful lawful." Sulayman ibn Dawud added: The Messenger of Allah (ﷺ) said: Muslims are on (i.e. stick to) their conditions.

Ka'b bin Malik said that in the time of the Messenger of Allah (ﷺ) he made demand in the mosque for payment of a debt due to him from Ibn Abi Hadrad, and their voices rose till the Messenger of Allah (ﷺ), who was in his house, heard them. The Messenger of Allah (ﷺ) then went out to them and, removing the curtain of his apartment, he called to Ka'b bin Malik, addressing: "Ka'b!" He said: "At your service, Messenger of Allah." Thereupon he made a gesture with is hand indicating: Remit half the debt due to you. Ka'b said: "I shall do so, Messenger of Allah." The Prophet (ﷺ) then said: "Get up and discharge"

Zaid bin Khalid al-Juhani reported the Messenger of Allah (ﷺ) as saying: "Shall I not tell you of the best witnesses ? He is the one who produces his deposition or gives his evidence (the narrator is doubtful) before he is asked for it." 'Abd Allah bin Abi Bakr dobted which of them he said. Abu Dawud said: Malis said: This refers to a man gives his evidence, but he does not know for whom it is meant. Al-Hamdani said: "He should inform the authorities. Ibn al-Sarh said: "He should give it to the ruler. The work ikhbar (inform) occurs in the version of al-Hamdani." Ibn al-Sarh said: "Ibn Abi 'Amrah and not 'Abd al-Rahman."

Yahya ibn Rashid said: We were sitting waiting for Abdullah ibn Umar who came out to us and sat. He then said: I heard the Messenger of Allah (ﷺ) as saying: If anyone's intercession intervenes as an obstacle to one of the punishments prescribed by Allah, he has opposed Allah; if anyone disputes knowingly about something which is false, he remains in the displeasure of Allah till he desists, and if anyone makes an untruthful accusation against a Muslim, he will be made by Allah to dwell in the corrupt fluid flowing from the inhabitants of Hell till he retracts his statement.

The tradition mentioned above has also been transmitted by Ibn 'Umar from the Prophet (ﷺ) through different chain of narrators to the same effect. In this version he also said: "He who assits in a dispute unjustly deserves the anger of Allah, Most High.

Narrated Khuraym Ibn Fatik: The Messenger of Allah (ﷺ) offered the morning prayer. When he finished it, he stood up and said three times: False witness has been made equivalent to attributing a partner to Allah. He then recited: "So avoid the abomination of idols and avoid speaking falsehood as people pure of faith to Allah, not associating anything with Him.

'Amr bin Shu'aib on his father's authority told that his grandfather said: The Messenger of Allah (ﷺ) rejected the testimony of a deceitful man and woman, of one who harbours rancour against his brother, and he rejected the testimony of one who is dependent on a family, and he allowed his testimony for other. Abu Dawud said: Ghimr means malice and enimity ; qani (dependant), a subordinate servant like a special servant.

The tradition mentioned above (No. 3593) has also been transmitted by Sulayman ibn Musa through a different chain of narrators. This version has: The Messenger of Allah (ﷺ) said: The testimony of a deceitful man or woman, of an adulterer and adulteress, and of one who harbours rancour against his brother is not allowable.

Narrated AbuHurayrah: The Prophet (ﷺ) said: The testimony of a nomad Arab against a townsman is not allowable.

'Uqbah bin al-Harith said: "I married Umm Yahya daughter of Abu Ihab. A black woman entered upon us. She said that she had suckled both of us. So I came to the Prophet (ﷺ), and amentioned it to him. He turned away from me. I said (to him): Messenger of Allah! she is a liar. He said: What do you know? She has said what she has said. Separate yourself from her (wife).

Ash-Sha'bi said: A Muslim was about to die at Daquqa', but he did not find any Muslim to call him for witness to his will. So he called two men of the people of the Book for witness. Then they came to Kufah, and approaching AbuMusa al-Ash'ari they informed him (about his) will. They brought his inheritance and will. Al-Ash'ari said: This is an incident (like) which happened in the time of the Messenger of Allah (ﷺ) and never occurred after him. So he made them to swear by Allah after the afternoon prayer to the effect that they had not misappropriated, nor told a lie, nor changed, nor concealed, nor altered, and that it was the will of the man and his inheritance. He then executed their witness.

Narrated Abdullah Ibn Abbas: A man from Banu Sahm went out with Tamim ad-Dari and Adi ibn Badda'. The man of Banu Sahm died in the land where no Muslim was present. When they returned with his inheritance, they (the heirs) did not find a silver cup with lines of gold (in his property). The Messenger of Allah (ﷺ) administered on oath to them. The cup was then found (with someone) at Mecca. They said: We have bought it from Tamim and Adi. Then two men from the heirs of the man of Banu Sahm got up and swore saying: Our witness is more reliable than their witness. They said that the cup belonged to their man. He (Ibn Abbas) said: The following verse was revealed about them: "O ye who believe! when death approaches any of you....."

Narrated Uncle of Umarah ibn Khuzaymah: The Prophet (ﷺ) bought a horse from a Bedouin. The Prophet (ﷺ) took him with him to pay him the price of his horse. The Messenger of Allah (ﷺ) walked quickly and the Bedouin walked slowly. The people stopped the Bedouin and began to bargain with him for the horse as and they did not know that the Prophet (ﷺ) had bought it. The Bedouin called the Messenger of Allah (ﷺ) saying: If you want this horse, (then buy it), otherwise I shall sell it. The Prophet (ﷺ) stopped when he heard the call of the Bedouin, and said: Have I not bought it from you? The Bedouin said: I swear by Allah, I have not sold it to you. The Prophet (ﷺ) said: Yes, I have bought it from you. The Bedouin began to say: Bring a witness. Khuzaymah ibn Thabit then said: I bear witness that you have bought it. The Prophet (ﷺ) turned to Khuzaymah and said: On what (grounds) do you bear witness? He said: By considering you trustworthy, Messenger of Allah (ﷺ)! The Prophet (ﷺ) made the witness of Khuzaymah equivalent to the witness of two people.