Musnad Ahmad 37:2

'Abd al-Samad narrated to us, my father narrated to us, Isma'il ibn Umayyah narrated to us, from al-Zuhri, who said: We discussed mut'ah—the mut'ah of women—in the presence of 'Umar ibn 'Abd al-'Aziz. Rabi' ibn Sabrah said: I heard my father say: I heard the Messenger of Allah, peace and blessings of Allah be upon him, during the Farewell Pilgrimage, saying: "He forbids the marriage of mut'ah."