It is narrated from Hasan al-Basri (RA) that the Messenger of Allah (PBUH) said, “Among acts of betrayal is that a person discloses the secret of his brother.”
(Al-Ruasi, Waki ibn al-Jarrah, Al-Zuhd, p. 767, Maktabat al-Dar, Madinah al-Munawwarah, 1404 AH.)
