What Nullifies Ablution
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 16
وَقَالَ عَبْدُ اَلرَّحْمَنِ بْنُ أَبِي عَبْدِ اَللَّهِ لِلصَّادِقِ عَلَيْهِ اَلسَّلاَمُ: أَجِدُ اَلرِّيحَ فِي بَطْنِي حَتَّى أَظُنَّ أَنَّهَا قَدْ خَرَجَتْ فَقَالَ «لَيْسَ عَلَيْكَ وُضُوءٌ حَتَّى تَسْمَعَ اَلصَّوْتَ أَوْ تَجِدَ اَلرِّيحَ» ثُمَّ قَالَ «إِنَّ إِبْلِيسَ يَجْلِسُ بَيْنَ أَلْيَتَيِ اَلرَّجُلِ فَيُحْدِثُ لِيُشَكِّكَهُ.
Abd al-Rahman ibn Abi Abdullah asked Imam Jafar ibn Muhammad Al-Sadiq عليه السلام said: 'I feel wind in my stomach to the extent that I think it has exited.' Imam عليه السلام said: 'You do not need to perform ablution unless you hear a sound or perceive the smell.' Imam عليه السلام then added: 'Indeed, Satan sits between a man's buttocks and causes him to think he has passed wind to make him doubt.'.
- Ṣaḥīḥ al-Faqīh