Musnad Ahmad 1016:14

Ibrahim ibn Abi al-Abbas narrated to us, Abu Uways narrated to us, from al-Zuhri, that Abd al-Rahman ibn Hurmuz al-A'raj, the freed slave of Rabi'ah ibn al-Harith ibn Abd al-Muttalib, informed him that he heard Abd Allah ibn Buhaynah al-Azdi—of Azd Shanu'ah, and he was an ally of Banu Abd al-Muttalib—say: "The Messenger of Allah (peace and blessings of Allah be upon him) prayed two rak'ahs for us, then he stood up and did not sit after the two rak'ahs, and the people stood up with him. When he finished his prayer, he prostrated two prostrations while he was sitting before the taslim, then he performed the taslim."