Ibrahim narrates: Sayyiduna Abdullah (may Allah be pleased with him) came to Sayyiduna Abu Musa al-Ash'ari (may Allah be pleased with him) and sat with him, talking. When the time of prayer came and the iqamah was called, Sayyiduna Abu Musa (may Allah be pleased with him) stepped back. Sayyiduna Abdullah (may Allah be pleased with him) said to him: O Abu Musa! You know that it is part of the Sunnah that the master of the house goes forward (to lead the people in prayer). But Sayyiduna Abu Musa (may Allah be pleased with him) would not accept this, until a freed slave of one of the two of them went forward (and led them in prayer).
Al-Tabarani recorded it, and its narrators are the narrators of the Sahih.
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 2333