حَدَّثَنَا أَبُو نُعَيْمٍ، قَالَ‏:‏ حَدَّثَنَا دَاوُدُ بْنُ قَيْسٍ قَالَ‏:‏ حَدَّثَنِي مُوسَى بْنُ يَسَارٍ‏:‏ سَمِعْتُ أَبَا هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ‏:‏ تَسَمُّوا بِاسْمِي، وَلاَ تُكَنُّوا بِكُنْيَتِي، فَإِنِّي أَنَا أَبُو الْقَاسِمِ‏.‏

Abu Musa said, "I had a son and I brought him to the Prophet, may Allah bless him and grant him peace, and he named him Ibrahim. He chewed up a date and gave it to him and made supplication for him to be blessed and then gave him back to me." He was Abu Musa's oldest son.