穆卡塔

Also known as disjoined letters, disconnected letters, mysterious letters, openers, opening letters

The mysterious letters (muqaṭṭaʿāt, ḥurūf muqaṭṭaʿāt, "disjoined letters" or "disconnected letters") are combinations of between one and five Arabic letters that appear at the beginning of 29 out of the 114 chapters (surahs) of the Quran just after the Bismillāh Islamic phrase. The letters are also known as fawātiḥ () or "openers" as they form the opening verse of their respective surahs.