Abdur Rahman bin Abi Laila says that once Sayyiduna Ali (may Allah be pleased with him) made the people swear in the courtyard of Kufa and said: Whoever heard the statement of the Prophet (peace and blessings be upon him) at the occasion of Ghadir Khumm, let him stand up, that "Whoever's master I am, Ali is also his master." At this, twelve Badri Companions (may Allah be pleased with them) stood up and all of them testified that we all heard the Prophet (peace and blessings be upon him) at the occasion of Ghadir Khumm saying about Sayyiduna Ali (may Allah be pleased with him): "Does Allah not have a right over the believers?" All replied: Why not! He said: "Whoever's master I am, Ali is also his master. O Allah! Befriend whoever befriends Ali, and be the enemy of whoever is hostile to him."