Upon his return, King Saud rejected Prince Faisal's new arrangement and threatened to mobilize the Royal Guard against his brother. In response, Prince Faisal demanded King Saud make him regent and turn over all royal powers to him. In this, he had the crucial backing of the ulema (elite Islamic scholars), including a fatwa (edict) issued by the grand mufti of Saudi Arabia, a relative of Prince Faisal on his mother's side, calling on King Saud to accede to his brother's demands.