Sahih al-Bukhari 177
Book 4: Ablutions (Wudu') · Narrated by `Abbad bin Tamim
Arabic
حَدَّثَنَا أَبُو الْوَلِيدِ، قَالَ حَدَّثَنَا ابْنُ عُيَيْنَةَ، عَنِ الزُّهْرِيِّ، عَنْ عَبَّادِ بْنِ تَمِيمٍ، عَنْ عَمِّهِ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " لاَ يَنْصَرِفْ حَتَّى يَسْمَعَ صَوْتًا أَوْ يَجِدَ رِيحًا ".
English translation
Narrated `Abbad bin Tamim:My uncle said: The Prophet (ﷺ) said, "One should not leave his prayer unless he hears sound or smells something
Reference: Sahih al-Bukhari 177, Book of Ablutions (Wudu'). English translation by Dr. Muhammad Muhsin Khan.