(12) باب مَا جَاءَ فِي كَرَاهِيَةِ إِتْيَانِ النِّسَاءِ فِي أَدْبَارِهِنَّ
Ali narrated that The Messenger of Allah said:
"When one of you breaks wind then let him perform Wudu, and do not go into your women through their behinds." (ID)
Reference (ID): Jami` at-Tirmidhi 1166 (ID)
In-book reference (ID): Book 12, Hadith 21 (ID)
English translation (ID): Vol. 1, Book 7, Hadith 1166 (ID)