Hizb 3 opens with one of Al-Baqara's most historically consequential passages: the change of the qibla, the direction faced in prayer, away from Jerusalem toward the Kaaba at Mecca, addressed against objectors the text calls the foolish among the people. Alongside it comes a description of the community itself as a middle nation set to be a witness over mankind, language later readers have taken as a statement of the young community's intended role among older ones.
From there the hizb moves into an unusually dense run of legal material: the fast of Ramadan and its exemptions for travelers and the ill, the permitted and forbidden times and manners of intimacy between spouses, and an extended treatment of the pilgrimage, the months in which it is performed, the prohibition on quarreling or indecency while in its state, and the standing at Arafat that is its central rite.
The hizb closes still inside the pilgrimage material, on the remembrance of God at Mina in what the text calls numbered days, a phrase Hizb 4 picks up directly in its own opening verse. As with the qibla passage that opens it, Hizb 3 shows Al-Baqara moving fluidly between doctrinal statement and concrete communal instruction, the pattern that makes this sura read less like a single argument than like a sustained record of a community being built in real time.