Chapter on Rules of Janabah and Methods of Purification
Tahdhīb al-Aḥkām|Volume 1|Book 1|Chapter 6
عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنْ حَمَّادٍ عَنْ حَرِيزٍ عَنْ زُرَارَةَ وَ مُحَمَّدِ بْنِ مُسْلِمٍ عَنْ أَبِي جَعْفَرٍ عَ قَالَ:« إِنَّمَا اَلْوُضُوءُ حَدٌّ مِنْ حُدُودِ اَللَّهِ لِيَعْلَمَ اَللَّهُ مَنْ يُطِيعُهُ وَ مَنْ يَعْصِيهِ وَ إِنَّ اَلْمُؤْمِنَ لاَ يُنَجِّسُهُ شَيْءٌ إِنَّمَا يَكْفِيهِ مِثْلُ اَلدَّهْنِ».
Narrated by Ali ibn Ibrahim, from his father, from Hammad, from Hariz, from Zurara and Muhammad ibn Muslim, from Abu Ja'far عليه السلام, who said:
Imam عليه السلام said: "Wudu is a boundary set by Allah سبحانه وتعالى so that Allah سبحانه وتعالى may know who obeys Him and who disobeys Him. A believer is not made impure by anything; what suffices for him is an amount like oil (that moistens the body)."
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 1, p. 145
- Ṣaḥīḥ al-Tahdhīb, p. 70