Musannaf Ibn Abi Shaybah

Hazrat Sabrah Juhani says that I saw the Messenger of Allah (peace be upon him) standing between the corner and the door of the Ka'bah and saying: "O people! I had permitted you to contract temporary marriage (mut'ah) with women, but now Allah the Exalted has made it forbidden until the Day of Resurrection. If anyone has a wife through mut'ah, he should let her go her way, and do not take back whatever dowry you have given them."