Musnad Ahmad 509:15

Waki’ narrated to us, al-A’mash narrated to us, from al-Minhal ibn ‘Amr, from Ya’la ibn Murrah, from the Prophet (peace and blessings of Allah be upon him): A woman came to him with a son of hers who had been afflicted with madness. The Prophet (peace and blessings of Allah be upon him) said to him: "Get out, enemy of Allah! I am the Messenger of Allah." He said: So he recovered. She then gifted him two rams and some dried yogurt (aqt) and ghee. The Messenger of Allah (peace and blessings of Allah be upon him) said: "O Ya’la, take the dried yogurt and the ghee, and take one of the two rams, and return the other to her." Waki’ said once: From his father, and he did not say: "O Ya’la."