Imam Ibn Khuzaymah narrated this tradition with his chain from the narrator named Ibn Ishaq. He says that he narrated to me about sending blessings upon the Prophet Muhammad (peace be upon him) during prayer. Sayyiduna Abu Mas’ud narrates: A man came and sat in front of the Prophet Muhammad (peace be upon him). At that time, we were present with him. That man said: As for sending peace upon you, we have come to know about it. When we are praying, how should we send blessings upon you? May Allah send blessings upon you. The narrator says: The Prophet Muhammad (peace be upon him) remained silent until we wished that the man had not asked you this question. The Prophet Muhammad (peace be upon him) said: When you begin to send blessings upon me, then recite this:“O Allah! Send blessings upon the unlettered Prophet, our master Muhammad (peace be upon him), and upon the family of our master Muhammad (peace be upon him), as You sent blessings upon our master Ibrahim (peace be upon him) and upon the family of our master Ibrahim (peace be upon him). And send blessings upon the unlettered Prophet, our master Muhammad (peace be upon him), and upon the family of our master Muhammad (peace be upon him), as You sent blessings upon our master Ibrahim and upon the family of our master Ibrahim. Surely, You are Praiseworthy and Glorious.”