Sunan An-Nasa'i

Hadith #4514

It was narrated that Abu Sa 'eed A-Khudri said:""The Messenger of Allah forbade Mulamasah, which means touching a garment without looking at it; (and he forbade) Munabadhah which is where one man sells his garment to another man by throwing it to him, without him checking it or looking at it