Chapter on Obligatory and Recommended Ritual Washing
Tahdhīb al-Aḥkām|Volume 1|Book 1|Chapter 5
وَ بِهَذَا اَلْإِسْنَادِ عَنْ مُحَمَّدِ بْنِ يَعْقُوبَ عَنْ مُحَمَّدِ بْنِ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ عَلِيِّ بْنِ ذُوَيْلٍ عَنْ مُقَاتِلِ بْنِ مُقَاتِلٍ قَالَ: قُلْتُ لِلرِّضَا عَلَيْهِ اَلسَّلاَمُ جُعِلْتُ فِدَاكَ عَلِّمْنِي دُعَاءً لِقَضَاءِ اَلْحَوَائِجِ قَالَ فَقَالَ« إِذَا كَانَتْ لَكَ حَاجَةٌ إِلَى اَللَّهِ تَعَالَى مُهِمَّةٌ فَاغْتَسِلْ وَ اِلْبَسْ أَنْظَفَ ثِيَابِكَ» وَ ذَكَرَ اَلْحَدِيثَ.
Through this chain of narration, from Muhammad ibn Ya’qub, from Muhammad ibn Yahya, from Ahmad ibn Muhammad, from Ali ibn Dhuwail, from Muqatil ibn Muqatil, who said:
I said to al-Ridha عليه السلام: 'May I be your ransom, teach me a supplication for fulfilling needs.' Imam عليه السلام said: 'When you have an important need before Allah سبحانه وتعالى, the Exalted, perform ghusl and wear your cleanest clothes,' and he mentioned the rest of the narration."
- Tahdhīb al-Aḥkām fī Sharḥ al-Muqniʿah, vol. 1, p. 122
- Ṣaḥīḥ al-Tahdhīb