At Makkah on the occasion of the Hajj, Abu Bakr presided at the Hajj ceremony while Ali read the verses of the revelation which came to be known as the Declaration of Discharge. According to the Declaration it was provided that henceforward the Muslims were discharged of all obligations that they had undertaken with the non-Muslims. All treaties or agreements with them were to be no longer effective. Henceforward the non-Muslims were not to be allowed to visit the Kaaba or perform the Hajj. New rules for the performance of the Hajj were proclaimed. No one was to circumambulate the Kaaba naked. Polytheism was to be no longer tolerated a grace period of four months was laid down and thereafter all agreement with the non-Muslims were to stand as abrogated.