1. Ali ibn Ibrahim has narrated from his father from Muhammad ibn ‘Isa from Yunus from Zur’ah from Sama‘ah from abu Basir who has narrated the following
“I once asked abu ‘ Abd Allah (a.s.), about the testimony of a father for his son or a son’s testimony for his father and the testimony of a brother for his brother. He (the Imam) said, ’It is permissible.’”