Abu Dawud Book 14, Hadith Number 3182.
Chapter : Not known.
Narated By Ata’ : AbuDawud said: I recited to Sa’id ibn Ya’qub at-Taliqani saying: Ibn al-Mubarak transmitted to you from Ya’qub ibn al-Qa’qa’ on the authority of Ata’ that the Prophet (PBUH) prayed over his son Ibrahim when he was seventy days old.