It is narrated from Sayyiduna Anas (may Allah be pleased with him) that Sayyiduna Bilal (may Allah be pleased with him) would call the iqamah for the prayer, then the Prophet (peace and blessings be upon him) would come (out of his apartment into the mosque), and a man would come before him (peace and blessings be upon him) and begin speaking to him (peace and blessings be upon him) about some need of his, until (from the length of the waiting) some of the people would begin nodding their heads from drowsiness.
Imam al-Tabarani (may Allah have mercy on him) said: "No one narrated this hadith from Umarah bin Zadhan except Asad bin Musa."