Chapter on the Description of Ablution (Wudu)
Tahdhīb al-Aḥkām|Volume 1|Book 1|Chapter 4
مَا أَخْبَرَنِي بِهِ اَلشَّيْخُ أَيَّدَهُ اَللَّهُ تَعَالَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ أَبِيهِ عَنْ سَعْدِ بْنِ عَبْدِ اَللَّهِ عَنْ أَحْمَدَ بْنِ مُحَمَّدِ بْنِ عِيسَى رَفَعَهُ إِلَى أَبِي بَصِيرٍ عَنْ أَبِي عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ: فِي مَسْحِ اَلْقَدَمَيْنِ وَ مَسْحِ اَلرَّأْسِ قَالَ« مَسْحُ اَلرَّأْسِ وَاحِدَةٌ مِنْ مُقَدَّمِ اَلرَّأْسِ وَ مُؤَخَّرِهِ وَ مَسْحُ اَلْقَدَمَيْنِ ظَاهِرُهُمَا وَ بَاطِنُهُمَا».
The Shaykh (Al-Mufid), may Allah سبحانه وتعالى support him, informed me from Ahmad ibn Muhammad, from his father, from Saʿd ibn Abdullah, from Ahmad ibn Muhammad ibn ʿIsa, who raised it to Abu Basir, from Abu Abdullah عليه السلام
Imam عليه السلام said: regarding wiping the feet and the head. Imam عليه السلام said: "Wiping the head is once, from the front of the head to the back. As for wiping the feet, it includes their upper and lower surfaces."
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 1, p. 85
- Ṣaḥīḥ al-Tahdhīb