Sayyiduna Jabir bin Abdullah and Sayyiduna Salamah bin al-Akwa' (may Allah be pleased with them), who was a Companion from the tribe of Aslam, narrate: We were on a military expedition when someone came to us from the Messenger of Allah (peace and blessings be upon him) and said: The Messenger of Allah (peace and blessings be upon him) says: "Contract mut'ah (temporary marriage)."
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 6205