Narrated `Abbas bin Tamim: that his uncle said: "The Prophet (ﷺ) was asked: If a person feels something during his prayer; should one interrupt his prayer?" The Prophet (ﷺ) said: No! You should not give it up unless you hear a sound or smell something." Narrated Ibn Abi Hafsa: Az-Zuhri said, "There is no need of repeating ablution unless you detect a smell or hear a sound."
Source: sunnah.com
Other translations
Arabic
حَدَّثَنَا أَبُو نُعَيْمٍ، حَدَّثَنَا ابْنُ عُيَيْنَةَ، عَنِ الزُّهْرِيِّ، عَنْ عَبَّادِ بْنِ تَمِيمٍ، عَنْ عَمِّهِ، قَالَ شُكِيَ إِلَى النَّبِيِّ صلى الله عليه وسلم الرَّجُلُ يَجِدُ فِي الصَّلاَةِ شَيْئًا، أَيَقْطَعُ الصَّلاَةَ قَالَ " لاَ، حَتَّى يَسْمَعَ صَوْتًا أَوْ يَجِدَ رِيحًا ". وَقَالَ ابْنُ أَبِي حَفْصَةَ عَنِ الزُّهْرِيِّ لاَ وُضُوءَ إِلاَّ فِيمَا وَجَدْتَ الرِّيحَ أَوْ سَمِعْتَ الصَّوْتَ.
sunnah.com