Thirty-Seven Surahs Known as Amma

Juz 30, known as Juz Amma for the opening word of its first surah, is by a wide margin the most surah-dense division in the Quran: it contains thirty-seven complete surahs, An-Naba through An-Nas, far more than any other single juz, most of them only a handful of verses long. It opens exactly where Al-Mursalat ends and closes with the Quran's own final verse.

Its short, rhythmic surahs are the ones most Muslims learn first and recite most often within the five daily prayers, making Juz Amma the standard starting point in most children's Quran memorisation curricula worldwide, typically taught before the rest of the Quran rather than in the canonical reading order. In communities that pace the nightly tarawih prayers of Ramadan at one juz per night, this is customarily the final night's portion, and printed Mushafs typically mark its opening in the margin with a small medallion just as they do for each of the other twenty-nine. Many print editions, including the widely used 604-page Uthmani Mushaf standardised by Saudi Arabia's King Fahd Complex, begin each juz on a fresh page and hold each to roughly twenty pages, letting a reciter track a night's target by page count alone without consulting verse numbers.