It was narrated from Abu Saeed Al-Khudri that the Messenger of Allah صلی اللہ علیہ وآلہ وسلم forbade Mulamasah, which means touching a garment without looking at it, and 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. (Sahih)