Al-Fath ('The Victory'), 29 Medinan verses, was revealed concerning the Treaty of Hudaybiyya, which the surah calls 'a clear victory' (48:1) though it seemed a setback. It commends the believers who pledged loyalty under the tree (the Pledge of Ridwan, 48:18) and foretells the entry into the Sacred Mosque in security.
The Treaty of Hudaybiyya, concluded in the sixth year after the emigration when Muhammad and his companions set out for pilgrimage but were turned back by Meccan resistance short of the city, imposed terms that seemed one-sided at the time, a ten-year truce, the pilgrims' return without completing the rite that year, and the surrender of any Meccan who fled to Medina without a matching obligation in reverse, provoking open dismay among some companions including, by report, Umar ibn al-Khattab himself. The surah's declaration that this apparent setback was in fact 'a clear victory' (48:1) is explained by classical commentators through its consequences rather than its immediate terms, the truce opened safe travel and communication that allowed the new religion to spread far more rapidly across Arabia in the two years that followed than outright conflict had achieved, and the treaty's collapse two years later gave Muhammad the pretext for the largely bloodless conquest of Mecca. The Pledge of Ridwan (48:18), sworn under a tree at Hudaybiyya by companions ready to fight after a false report that a negotiator had been killed, is commemorated in Islamic memory as a moment of exceptional loyalty, with the surah stating that God was 'well pleased' with those who took it.