 In March 628 CE (6 AH), Muhammad set for Mecca to perform the ritual pilgrimage of Umrah.The Quraysh denied the Muslims entry into the city and posted themselves outside Mecca, determined to offer resistance even though the Muslims did not have any intention or preparation for battle.Muhammad camped outside Mecca at Hudaybiyyah and sent Uthman ibn Affan as his envoy to meet with the leaders of Quraysh and negotiate their entry into the city.