Quraysh Violate the Treaty of Hudaybiyyah

Banu Bakr, allies of the Quraysh, attacked Banu Khuza'ah, allies of the Muslims, killing several of them at the sacred precinct of al-Watir. Some Qurayshi men participated in the attack under cover of darkness. Banu Khuza'ah appealed to the Prophet for help. Abu Sufyan traveled to Medina to salvage the treaty but was rebuffed. The violation provided the justification for the conquest of Mecca. The Prophet began secret preparations for a massive military campaign.