Al-Kāfi - Volume 4 > The Rare Ahadith about Tawaf
Hadith #4

4ـ سَهْلُ بْنُ زِيَادٍ عَنْ أَحْمَدَ بْنِ مُحَمَّدٍ عَنْ مُثَنًّى عَنْ زِيَادِ بْنِ يَحْيَى الْحَنْظَلِيِّ عَنْ أَبِي عَبْدِ الله (عَلَيْهِ السَّلاَم) قَالَ لا تَطُوفَنَّ بِالْبَيْتِ وَعَلَيْكَ بُرْطُلَةٌ.

4. Sahl ibn Ziyad has narrated from Ahmad ibn Muhammad from Muhammad ibn Muthanna’ from Ziyad ibn Yahya al-Hanzaliy who has said the following: “Abu ‘Abd Allah, ‘Alayhi al-Salam, has said, ‘You must not perform Tawaf wearing burtulah (a certain kind of cap).”’