It is narrated from Sayyiduna Abu Sa'id (may Allah be pleased with him) that "the Prophet (peace and blessings be upon him) said four takbirs over his son, Sayyiduna Ibrahim (may Allah be pleased with him)."
No one narrated this hadith from al-Hasan bin Salih (may Allah have mercy on him) except Mus'ab bin al-Miqdam (may Allah have mercy on him), and Ata al-Basri (may Allah have mercy on him) is in fact Ata bin Ajlan (may Allah have mercy on him).