Al-Kāfi

Hadith 195
ghuslfriday-prayer
2ـ عَلِيُّ بْنُ مُحَمَّدٍ عَنْ سَهْلِ بْنِ زِيَادٍ وَمُحَمَّدُ بْنُ يَحْيَى عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنِ ابْنِ أَبِي نَصْرٍ عَنْ مُحَمَّدِ بْنِ عَبْدِ الله قَالَ سَأَلْتُ الرِّضَا (عَلَيْهِ الْسَّلام) عَنْ غُسْلِ يَوْمِ الْجُمُعَةِ فَقَالَ وَاجِبٌ عَلَى كُلِّ ذَكَرٍ وَأُنْثَى عَبْدٍ أَوْ حُرٍّ.
2. Ali ibn Muhammad has narrated from Sahl ibn Ziyad and Muhammad ibn Yahya from Ahmad ibn Muhammad ibn abu Nasr from Muhammad ibn ‘Abd Allah who has said the following: “I once asked al-Rida’ (a.s.), about Ghusl (bath) on Friday. He (the Imam) said, ‘It is obligatory on every male, female, slave or free.’”
Source: Shaykh Muḥammad b. Yaʿqūb al-Kulaynī