What Defiles Clothing and the Body
Man Lā Yaḥḍuruh al-Faqīh|Volume 1|Book 1|Chapter 17
وَقَالَ مُحَمَّدُ بْنُ اَلنُّعْمَانِ لِأَبِي عَبْدِ اَللَّهِ عَلَيْهِ اَلسَّلاَمُ: أَخْرُجُ مِنَ اَلْخَلاَءِ فَأَسْتَنْجِي بِالْمَاءِ فَيَقَعُ ثَوْبِي فِي ذَلِكَ اَلْمَاءِ اَلَّذِي اِسْتَنْجَيْتُ بِهِ فَقَالَ «لاَ بَأْسَ بِهِ وَ لَيْسَ عَلَيْكَ شَيْءٌ.
Muhammad ibn al-Nu'man asked Imam Jafar ibn Muhammad Al-Sadiq عليه السلام: 'I leave the restroom and perform istinja (cleansing) with water, and my clothing falls into the water used for istinja. Is there anything upon me?' Imam عليه السلام said: 'There is no harm in it, and it does not affect you.'".
- Ṣaḥīḥ al-Faqīh