Chapter on Obligatory and Recommended Ritual Washing
Tahdhīb al-Aḥkām|Volume 1|Book 1|Chapter 5
وَبِهَذَا اَلْإِسْنَادِ عَنْ سَعْدِ بْنِ عَبْدِ اَللَّهِ عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ اَلْقَاسِمِ عَنْ عَلِيٍّ قَالَ: سَأَلْتُ أَبَا عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ عَنْ غُسْلِ اَلْعِيدَيْنِ أَ وَاجِبٌ هُوَ فَقَالَ« هُوَ سُنَّةٌ» قُلْتُ فَالْجُمُعَةُ قَالَ« هُوَ سُنَّةٌ».
Through this chain of narration, from Sa’d ibn Abdullah, from Ahmad ibn Muhammad, from al-Qasim, from Ali, who said:
I asked Abu Abdullah عليه السلام about the ghusl on the two Eids. Is it obligatory? Imam عليه السلام said: "It is a sunnah." I asked: "And what about the ghusl on Friday?" Imam عليه السلام said: "It is a sunnah."
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 1, p. 117
- Ṣaḥīḥ al-Tahdhīb