Necessity of Ghusl (bath) on Friday
Al-Kāfi|Volume 3|Book 1|Chapter 28
6ـ عِدَّةٌ مِنْ أَصْحَابِنَا عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ الْحُسَيْنِ بْنِ مُوسَى عَنْ أُمِّهِ وَأُمِّ أَحْمَدَ بِنْتِ مُوسَى قَالَتَا كُنَّا مَعَ أَبِي الْحَسَنِ (عَلَيْهِ الْسَّلام) بِالْبَادِيَةِ وَنَحْنُ نُرِيدُ بَغْدَادَ فَقَالَ لَنَا يَوْمَ الْخَمِيسِ اغْتَسِلاَ الْيَوْمَ لِغَدٍ يَوْمِ الْجُمُعَةِ فَإِنَّ الْمَاءَ بِهَا غَداً قَلِيلٌ فَاغْتَسَلْنَا يَوْمَ الْخَمِيسِ لِيَوْمِ الْجُمُعَةِ.
6. A number of our people have narrated from Ahmad ibn Muhammad from al-Husayn ibn Musa from his mother, mother of Ahmad daughter of Musa who have said the following: “We were with abu al-Hassan عليه السلام, in the desert on our way to Baghdad. He (the Imam) said to us, ‘Today is Thursday, take Ghusl (bath) for Friday, tomorrow water will be scarce.’ We took Ghusl (bath) on Thursday for Friday.’”
- Mirʾāt al-ʿUqūl fī Sharḥ Akhbār Āl al-Rasūl (3/130)
- Ṣaḥīḥ al-Kāfī