Hifz or Hafizi Quran refers to the memorization of the Quran, which is the holy book of Islam. The 15-line format of the Quran is a popular version used for memorization. Each page contains 15 lines, which makes it easier for students to memorize and recite. This format is commonly used in many Quranic schools and madrasas.

The 15-line Hifz Quran is available in different prints, and each page contains 15 lines of Arabic text, with markings and symbols to aid in pronunciation and recitation. It is designed to help students memorize the Quran systematically, starting from an early age.