Hizb 51 opens Juz 26, carrying the whole of Al-Ahqaf and Muhammad before opening Al-Fath, a further instance of the pattern this account has traced through several preceding hizb divisions, where a stretch of shorter Medinan and Meccan suras lets one hizb span three separate chapters rather than the one or two typical of the Quran's earlier, longer suras.
In tarawih recitation this hizb typically opens the twenty sixth night, and because the Hudaybiyyah material addresses a specific negotiated agreement whose apparent setback the sura reinterprets as victory, congregations following with historical commentary sometimes treat this hizb as a study in how the Quran can reframe an event's meaning rather than merely record it.
Huffaz reviewing this hizb by quarter typically find the jinn episode near its start and the pledge beneath the tree near its close the two most concrete anchor points, both short, vivid scenes bracketing the more abstract legal and doctrinal material on fighting and hypocrisy carried in between them.
Because the treaty material and the jinn episode sit at opposite ends of this hizb, one a specific negotiated agreement among people, the other a report of unseen beings responding to revelation, huffaz reviewing it by quarter often treat the two as bookends framing the more general legal and doctrinal content on fighting and hypocrisy carried between them.