Riyad as-Salihin
Riyad as-Salihin 786
The Excellence of Wearing White Clothes and the Permissibility of Wearing Red, Green, Yellow and Black Clothes Made from Cotton and Linen but not Silk
Arabic hadith text
وعنها قالت: خرج رسول الله صلى الله عليه وسلم ذات غداة، وعليه مرط مرحل من شعر أسود.((رواه مسلم))
Translation
'Aishah (May Allah be pleased with her) reported
One morning the Messenger of Allah (ﷺ) went out wearing a black blanket made of a camel or sheep's black hair with patterns of camel's bags upon it.[Muslim].