What Nullifies Ablution
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 16
وَ سُئِلَ مُوسَى بْنُ جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ: عَنِ اَلرَّجُلِ يَرْقُدُ وَ هُوَ قَاعِدٌ هَلْ عَلَيْهِ وُضُوءٌ فَقَالَ «لاَ وُضُوءَ عَلَيْهِ مَا دَامَ قَاعِداً إِنْ لَمْ يَنْفَرِجْ.
Imam Musa ibn Jafar Al-Kadhim عليه السلام was asked about a man who falls asleep while sitting: does he need to perform ablution? Imam عليه السلام said: 'He does not need to perform ablution as long as he remains seated and does not slump over.'.
- Ṣaḥīḥ al-Faqīh