Three Surahs, Two of Them Whole

Juz 18 opens exactly where Al-Hajj ends and carries two complete surahs, all one hundred and eighteen verses of Al-Muminun and all sixty-four verses of An-Nur, before opening Al-Furqan and stopping after only its first twenty of seventy-seven verses. Three surahs contribute to this single juz, two of them carried in full and the third only just begun.

In communities that pace the nightly tarawih prayers of Ramadan at one juz per night, this is customarily the eighteenth night's portion, though many mosques recite faster to finish early in the month or slower to spread the reading further, and some congregations instead divide the whole Quran among thirty reciters for a single collective khatm. Huffaz reviewing memorised portions often pace themselves by a juz's two hizb and four quarter-hizb divisions rather than by surah, and printed Mushafs typically mark each juz's opening in the margin with a small medallion inscribed with its number, a page-level convention distinct from these finer internal marks. 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.