A juz (plural ajza), also called a para in South Asia, is one of thirty roughly equal divisions of the written Quran. The division is made by length rather than by meaning, so a juz usually begins and ends in the middle of a surah; each is further split into two hizb and each hizb into quarters. Reciting one juz a night completes the whole Quran across a lunar month, a rhythm tied above all to Ramadan, when the entire text is recited in the nightly tarawih prayers. This portion spans Hud 11:6 through Yusuf 12:52. Hud recounts a chain of warner-prophets, Noah and the Flood, Hud, Salih, the guests of Abraham, Lot and Shuayb, as a lesson in patient perseverance. It is followed by the opening of Yusuf ('Joseph'), the Quran's most sustained single narrative, from the dream to the descent into Egypt.
Yusuf, the sustained single narrative of Joseph that occupies much of this juz, is described in its own opening verses as 'the most beautiful of narratives' (12:3), and its uninterrupted, novelistic structure is unusual enough among Quranic surahs that later literary criticism within the Islamic tradition treated it as a model case for discussing narrative art in scripture. Hud's closing material on Noah and the guests of Abraham, read just before it, was already establishing the pattern, warner sent, message rejected, judgement delivered, that Yusuf's story then deliberately departs from by ending in reconciliation rather than destruction.