Testimony of a brother for his brother

Umar bin Abd al-Aziz accepted the testimony of a brother in favour of his brother.

It is narrated from Ata bin Abi Rabah (may Allah have mercy on him) that a dispute arose between two men of the neighbourhood. The full brother of one of them testified for him before Shurayh (may Allah have mercy on him). Shurayh said to the man: Are you his brother? Then he asked: Do you have any claim against the person you are testifying against? He said: No. He then said to the opponent: So on what grounds should I reject his testimony?

Al-Sha'bi (may Allah have mercy on him) said: The closest relative whose testimony is permissible is a brother testifying for his brother.

Ibrahim (may Allah have mercy on him) considered the testimony of a brother in favour of his brother acceptable (valid).

Something similar is narrated from al-Sha'bi (may Allah have mercy on him).

Sayyiduna Ibn al-Zubayr (may Allah be pleased with him) held the testimony of a brother in favour of his brother to be valid.

Al-Hasan (may Allah have mercy on him) considered the testimony of a brother in favour of his brother valid.

Shurayh (may Allah have mercy on him) said: If a brother is upright, his testimony in favour of his brother is valid.

Shurayh (may Allah have mercy on him) accepted the testimony of a brother in favour of his brother.