Sahih al-Bukhari 5821
صحيح البخاري#5821SahihNarrated Abu Huraira:Allah's Messenger (ﷺ) forbade two types of dresses: (A) To sit in an Ihtiba' posture in one garment nothing of which covers his private parts. (B) to cover one side of his body with one garment and leave the other side bare The Prophet (ﷺ) also forbade the Mulamasa and Munabadha
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 77:38