(44) باب مَا جَاءَ فِي كَرَاهِيَةِ الطَّوَافِ عُرْيَانًا
Zaid bin Uthai said:
XI asked Ali: "What is it that you were sent with?" He said: "With four things: None will be admitted into Paradise except for the soul that is a Muslim. None is to perform Tawaf around the House while naked. The Muslims and the idolaters will not be gathering (in Makkah) together after this year. And for whomever there is a covenant between him and the Prophet, then his covenant is (valid) until its term, and for that in which there was no term, then it shall be four months."
Reference: Jami` at-Tirmidhi 871
In-book reference: Book 9, Hadith 64
English translation: Vol. 2, Book 4, Hadith 871