صَحِيحُ الْبُخَارِيِّ
Sahih al-Bukhari 177
Ablutions (Wudu')
Whosoever considers not to repeat ablution except if something is discharged or passed from exit (front or back private parts)
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 .
Narrated `Abbad bin Tamim: My uncle said: The Prophet (ﷺ) said, "One should not leave his prayer unless he hears sound or smells something."
Sahih al-Bukhari, 177Sahihصحيح