Abu al-Zubayr narrates from Sayyiduna Jabir (may Allah be pleased with him) that Sulayk al-Ghatafani (may Allah be pleased with him) came on a Friday while the Prophet (peace and blessings be upon him) was seated on the pulpit. He sat down without praying, so he (peace and blessings be upon him) asked: "Have you prayed two rak'ahs?" He said: No. He (peace and blessings be upon him) said: "Stand up and pray two rak'ahs."
Hadith Referenceالسنن الكبرى للبيهقي / كتاب الجمعة / 5691