Mu'awiya b. Qurra quoted his father as saying:I came to the Prophet with a company of Muzaina who swore allegiance to him, and as his buttons were open I put my hand inside his shirt and felt the seal. Abu Dawud transmitted it.
Hadith Referenceمشكوة المصابيح / كتاب اللباس / 4336
Hadith Gradingالألبانی:صَحِيح | زبیر علی زئی:إسناده صحيح
Hadith Takhrij´تحقيق و تخريج: محدث العصر حافظ زبير على زئي رحمه الله` «إسناده صحيح، رواه أبو داود (4082)»