Musnad Abu Ya'la al-Mawsili 111:10

Abu Ya'la informed us, he said: It was read to Bishr, Abu Yusuf informed you, Ismail bin Muslim narrated to us, from al-Hasan and Abu al-Zubayr, from Jabir: That Sulayk al-Ghatafani came while the Messenger of Allah (may Allah bless him and grant him peace) was delivering the sermon on Friday. He said: "Have you prayed?" He said: "No." He said: "Then pray two rak'ahs, making them brief."