Sahih Al Bukhari (368)

عن أبي هريرة قال: نهى النبي صلى الله عليه وسلم عن بيعتين: عن اللماس والنباذ، وأن يشتمل الصماء، وأن يحتبي الرجل في ثوب واحد.

Abu Hurayrah (may Allah be pleased with him) narrated that the Prophet (peace be upon him) forbade two kinds of sales i.e. Al Limas and An-Nibadh (the former is a kind of sale in which the deal is completed if the buyer touches a thing, without seeing or checking it properly and the latter is a kind of a sale in which the deal is completed when the seller throws a thing towards the buyer giving him no opportunity to see, touch or check it) and (the Prophet (peace be upon him) forbade) also Ishtimal-As-Samma’ and Al Ihtiba’ in a single garment .