Sayyiduna Jabir (may Allah be pleased with him) says: Sulayk al-Ghatafani came while the Messenger of Allah (peace and blessings be upon him) was delivering the sermon on the pulpit on Friday, and he (peace and blessings be upon him) ordered him to pray two rak'ahs and keep them short.
Hadith Referenceالمعجم الكبير للطبراني / باب السين / 6680