Along with 1400 muslims, Prophet Muhammed (PBH) started from Madina with the intention of visiting Kaaba at Makkah for Umrah. He camped at Hudaibiya from where he sent word to the Makkans through various people including Hazrath Osman that he had come only for Umrah. The delay in Hazrath Osman’s return and a rumour that be was killed, made the muslims swear an allegiance to Prophet Muhammed (PBH) (under a tree) that they would defend him at all costs and die fighting at his side. But later Hazrath Osman returned safe. The Meccans refused permission but an agreement was made that the Muslims would be allowed to perform Umrah, the following year. Many other things were also agreed upon. This treaty proved to be a great victory because war had become a barrier between muslims and non muslims, now both parties met freely which made propagation of Islam easier.