'When he emerges, he will lean his back against the Ka'ba, and three hundred and thirteen men will assemble with him, and the first thing he will utter will be the verse, What remains of Allah's provision is better for you, should you be the faithful. He will then say, 'l am the remains of Allah, His proof and His vicegerent upon you. None will salute him except by saying, 'Peace be upon you O remainder of Allah (baqiyyat Allah) in His land.?