Musnad Abu Ya'la al-Mawsili 108:179

Dawud ibn Rashid narrated to us, Hafs ibn Ghiyath narrated to us, from al-A'mash, from Abu Salih, from Abu Hurayrah, and from Abu Sufyan, from Jabir, who said: 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 to him, "Have you prayed before coming?" He said, "No." He said, "Then pray two rak'ahs and make them brief."