Musannaf Ibn Abi Shayba 3:2136

Ibn ‘Ulayyah narrated to us, from Khalid, from Abu Qilabah, from Ibn al-Muhallab, from ‘Imran ibn Husayn, who said: The Messenger of Allah (may Allah bless him and grant him peace) prayed the ‘Asr prayer, then he performed the taslim after three rak'ahs, then he entered [his house]. A man called al-Khirbaq stood up to him and said: "O Messenger of Allah," and he mentioned to him what he had done. So he (the Prophet) came out in a state of anger, dragging his garment, until he reached the people. He said: "Is this one truthful?" They said: "Yes." He said: "He then prayed that [missing] rak'ah, then performed the taslim, then prostrated two prostrations, then performed the taslim."