Al-Kāfi - Volume 3 > Sprucing up on Fridays
Hadith #4

4ـ عَلِيُّ بْنُ إِبْرَاهِيمَ عَنْ أَبِيهِ عَنْ حَمَّادِ بْنِ عِيسَى عَنْ حَرِيزٍ عَنْ زُرَارَةَ قَالَ قَالَ أَبُو جَعْفَرٍ (عَلَيْهِ الْسَّلام) لاَ تَدَعِ الْغُسْلَ يَوْمَ الْجُمُعَةِ فَإِنَّهُ سُنَّةٌ وَشَمَّ الطِّيبَ وَالْبَسْ صَالِحَ ثِيَابِكَ وَلْيَكُنْ فَرَاغُكَ مِنَ الْغُسْلِ قَبْلَ الزَّوَالِ فَإِذَا زَالَتْ فَقُمْ وَعَلَيْكَ السَّكِينَةَ وَالْوَقَارَ وَقَالَ الْغُسْلُ وَاجِبٌ يَوْمَ الْجُمُعَةِ.

4. Ali ibn Ibrahim has narrated from his father from Hammad ibn ‘Isa from Hariz from Zurarah who has narrated the following: “Abu Ja’far, ‘Alayhi al-Salam, has said, ‘You must not ignore Ghusl (bath) on Friday; it is a sunnah. You should use perfumes, dress up in you proper dress and you should complete your Ghusl (bath) before noontime. At Zawal (declining of the sun toward the west at noontime) rise up with calmness and dignity for prayer.’ He (the Imam) said, ‘Ghusl (bath) on Friday is obligatory.’”