Sahih Bukhari, Chapter: Peacemaking (Reconciliation)

Allah's Apostle (SAW) set out for the Umra but the disbelievers of Quraish prevented him from reaching the Kaaba. So, he slaughtered his sacrifice and got his head shaved at Al-Hudaibiya, and agreed with them that he would perform Umra the following year and would not carry weapons except swords and would not stay in Makkah except for the period they allowed. So, the Prophet (SAW) performed the Umra in the following year and entered Makkah according to the treaty, and when he stayed for three days, the disbelievers ordered him to depart, and he departed.