Bulugh al-Maram 1153

Narrated Rafi' bin Sinan (RA):

He accepted Islam but his wife refused to accept it. The Prophet (ﷺ) then made the mother sit down to a side and the father to another side and made the son sit down between them. He (the son) then inclined to his mother, so the Prophet (ﷺ) then said. "O Allah, give him guidance." Then he inclined to his father and he took him. [Abu Dawud and an-Nasa'i reported it. al-Hakim graded it Sahih (authentic)].