It is narrated on the authority of Abdullah b. 'Amr that the Prophet (ﷺ) observed: "There are four characteristics, whoever has them all is a pure hypocrite, and whoever has one of its characteristics, he has one of the characteristics of hypocrisy, until he gives it up: When he speaks he lies, when he makes a covenant he betrays it, when he makes a promise he breaks it, and when he disputes he resorts to obscene speech." In the narration of Sufyan (one of the narrators) it is: "And if he has one of them, he has one of the characteristics of hypocrisy."

It is reported on the authority of Abu Huraira that the Messenger of Allah (may peace and blessings be upon him) said: Three are the signs of a hypocrite: when he spoke he told a lie, when he made a promise he acted treacherously against it, when he was trusted he betrayed.

Abu Huraira reported that the Messenger of Allah (may peace and blessings be upon him) observed: There are three characteristics of a hypocrite: when he spoke he told a lie, when he made promise he acted treacherously, and when he was trusted he betrayed.

It is reported on the authority of Abu Huraira that the Messenger of Allah (may peace and blessings of Allah be upon him) made observations like them embodied in the hadith narrated by Yahya b. Muhammad on the authority of 'Ala', and added to it: even if he observed fast and prayed and asserted that he was a Muslim.

It is reported on the authority of Ibn 'Umar that the Apostle (may peace and blessings be upon him) observed: When a man calls his brother an unbeliever, it returns (at least) to one of them.

It is reported on the authority of Ibn 'Umar that the Messenger of Allah (may peace and blessings be upon him) said: Any person who called his brother: "O unbeliever" (has in fact done an act by which this unbelief) would return to one of them. If it were so, as he asserted (then the unbelief of man was confirmed but if it was not true), then it returned to him (to the man who labeled it on his brother Muslim).

It is reported on the authority of Abu Dharr that he heard the Messenger of Allah (may peace and blessings be upon him) saying: No person who claimed knowingly anyone else as his father besides (his own) committed nothing but infidelity, and he who made a claim of anything, which (in fact) did not belong to him, is not amongst us; he should make his abode in Fire, and he who labeled anyone with unbelief or called him the enemy of Allah, and he was in fact not so, it rebounded on him.

It is narrated on the authority of Abu Huraira that the Messenger of Allah (may peace and blessings be upon him) observed: Do not detest your fathers; he who detested his father committed infidelity.

It is reported on the authority of Sa'd b. Abi Waqqas: Both of my ears heard the Messenger of Allah (ﷺ) saying this: He who claimed the fatherhood of anyone else besides his real father knowingly (committed a great sin) ;Paradise is forbidden to him. Abu Bakra asserted that he too heard it from the Messenger of Allah (may peace be upon him ).

Sa'd and Abu Bakra each one of them said: My ears heard and my hearing preserved it that Muhammad (peace and blessings be upon him) observed: He who claimed for another one his fatherhood besides his own father knowingly that he was not his father-to him Paradise is forbidden.

It is narrated on the authority of 'Abdullah b. Mas'ud that the Messenger of Allah (may peace and blessings be upon him) observed: Abusing a Muslim is an outrage and fighting against him is unbelief. Zubaid said: I asked Abu Wa'il: Did you hear it from Abdullah narrating if from the Messenger of Allah (may peace and blessings be upon him)? He replied: Yes. But there is mention of the talk between Zubaid and Abu Wa'il in the hadith narrated by Shu'ba.

Abu Bakr b. Abu Shaiba narrated a hadith like this from the Apostle (may peace and blessings be upon him) on the authority of Abdullah.

It is narrated on the authority of Jarir b. 'Abdullah that the Messenger of Allah (may peace and blessings be upon him) asked him on the occasion of the Farewell Pilgrimage to make the people silent and then said: Do not return to unbelief after me by striking the necks of one another.

Abdullah b. Mu'adh narrated from the Apostle (may peace and blessings be upon him) a hadith like this on the authority on Ibn Umar.

It is narrated on the authority of Abdullah b. Umar that the Apostle (may peace and blessings be upon him) observed on the occasion of the Farewell Pilgrimage Woe unto you distress unto you! Don't turn back as unbelievers after me by striking the necks of one another.

Harmala b. Yahya, Abdullah b. Wahb, Umar b. Muhammad, Ibn Umar narrated like the hadith reported by Shu'ba on the authority of Waqid.

It is narrated on the authority of Abu Huraira that the Messenger of Allah (may peace and blessings be upon him) observed: Two (things) are found among men which are tantamount to unbelief: slandering one's lineage and lamentation on the dead.

It is narrated on the authority of Jarir that he heard (the Holy Prophet) saying, The slave who fled from his master committed an act of infidelity as long as he would not return to him. Mansur observed: By God, this hadith was narrated from the Apostle (may peace and blessings be upon him), but I do not like that this should be narrated on my authority here in Basra.

It is narrated on the authority of Jarir that the Messenger of Allah (may peace and blessings be upon him) observed: The slave who fled from his master, responsibility with regard to him was absolved.

It is narrated on the authority of Zaid b. Khalid al-Juhani: The Messenger of Allah (may peace and blessings be upon him) led the morning prayer at Hudaybiya. There were some marks of the rainfall during the night. At the conclusion of prayer he turned towards people and observed: Do you know what your Lord has said? They replied: Allah and His Messenger know best. Upon this he (the Holy Prophet) remarked: He (Allah) said: Some of My bondsmen entered the morning as My believers and some as unbelievers. He who said: We have had a rainfall due to the Blessing and Mercy of Allah, he is My believer and a disbeliever of stars, and who said: We have had a rainfall due to the rising of such and such (star) disbelieved Me and affirmed his faith in the stars.