سَأَلْتُهُ عَنْ شَهَادَةِ الْوَالِدِ لِوَلَدِهِ وَ الْوَلَدِ لِوَالِدِهِ وَ الْأَخِ لِأَخِيهِ فَقَالَ تَجُوزُ.
“I once asked abu ’Abd Allah (a.s.), about the testimony of a father for his son, the testimony of a son for his father and the testimony of a brother for his brother. He (the Imam) said, ‘It is permissible.’”