Chapter on the Prayer of the One in Necessity
Tahdhīb al-Aḥkām|Volume 3|Book 2|Chapter 8
فَأَمَّا مَا رَوَاهُ اَلْحُسَيْنُ بْنُ سَعِيدٍ عَنْ فَضَالَةَ عَنِ اِبْنِ سِنَانٍ عَنْ أَبِي عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ قَالَ:« كُلُّ شَيْءٍ تَرَكْتَهُ مِنْ صَلاَتِكَ لِمَرَضٍ أُغْمِيَ عَلَيْكَ فِيهِ فَاقْضِهِ إِذَا أَفَقْتَ»
As for what was narrated by al-Husayn ibn Sa'id from Fadalah from Ibn Sinan from Abu Abdillah عليه السلام:
Imam al-Sadiq عليه السلام said: “Everything you left of your prayer due to an illness, in which you were rendered unconscious, make it up when you regain consciousness.”
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 3, p. 337
- Ṣaḥīḥ al-Tahdhīb, p. 301