Sahih Bukhari
Sacrifice on Occasion of Birth (Aqiqa)
Volume: 007 / Book Number: 066 / Hadith Number: 376
Narrated Abu Musa:
A son was born to me and I took him to the Prophet who named him Ibrahim, did Tahnik for him with a date, invoked Allah to bless him and returned him to me. (The narrator added: That was Abu Musa's eldest son.)