Hadith.4713 - In the narration of Ali ibn Al-Hakam from Ali ibn Abi Hamzah from the Righteous Servant (Imam Musa ibn Jafar Al-Kadhim عليه السلام), that he said:
"Aqiqah is obligatory when a man is blessed with a child. If he wishes to name the child on the same day, he may do so."