Chapter on Rules of Janabah and Methods of Purification
Tahdhīb al-Aḥkām|Volume 1|Book 1|Chapter 6
وَ أَخْبَرَنِي اَلشَّيْخُ أَيَّدَهُ اَللَّهُ تَعَالَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ أَبِيهِ عَنْ سَعْدِ بْنِ عَبْدِ اَللَّهِ عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ اَلْحُسَيْنِ بْنِ سَعِيدٍ وَمُحَمَّدِ بْنِ خَالِدٍ عَنْ عَبْدِ اَلْحَمِيدِ بْنِ عَوَّاضٍ[ غَوَّاضٍ خ ل] عَنْ مُحَمَّدِ بْنِ مُسْلِمٍ عَنْ أَبِي جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ قَالَ:« اَلْغُسْلُ يُجْزِي عَنِ اَلْوُضُوءِ وَ أَيُّ وُضُوءٍ أَطْهَرُ مِنَ اَلْغُسْلِ».
Narrated by the Shaykh (Al-Mufid), may Allah سبحانه وتعالى support him, from Ahmad ibn Muhammad, from his father, from Sa'd ibn Abdullah, from Ahmad ibn Muhammad, from al-Husayn ibn Sa'id and Muhammad ibn Khalid, from Abdul Hamid ibn Awad (or Ghawwad, according to another version), from Muhammad ibn Muslim, from Abu Ja'far عليه السلام, who said:
Imam عليه السلام said: "Ghusl suffices for wudu, and what purification is greater than ghusl?"
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 1, p. 146
- Ṣaḥīḥ al-Tahdhīb, p. 70