Hizb 51 opens with the whole of Al-Ahqaf, named for the sand dunes that were home to the tribe of Ad, retelling Hud's warning to that people once more and adding a brief account of a group of jinn who overhear the Quran being recited and return to their own kind to report what they heard, a story told at greater length later in Al-Jinn. The sura closes urging patience like that shown by the most resolute among earlier messengers.
The hizb then carries the whole of Muhammad, also known as Al-Qital, Fighting, which sets out rulings on armed conflict against persistent aggression, describes Paradise through rivers of water, milk, wine and honey that never spoil, and warns against hypocrisy among those who claim belief while withholding real support for the cause they claim to hold.
The hizb closes opening Al-Fath, the Victory, addressing the Treaty of Hudaybiyyah, a negotiated settlement that looked to many at the time like a concession rather than a triumph, and declaring it instead a clear victory. It praises the pledge of loyalty companions gave beneath a tree during the negotiations, an episode remembered afterward as a mark of their sincerity under real uncertainty about how events would unfold.