with the ‘uthmānī muṣḥaf (copy of the qur’ān) having been inscribed and formalized, and upon the necessitation of reciting the qur’ān according to its orthography, the other muṣḥafs, including the muṣḥaf of ubayy b. ka‘b, gradually lost their competence. nevertheless, the ‘uthmānī muṣḥaf found its own qārīs (reciters) and qarā‘as and abū bakr b, mujāhid presented the qarā‘a of his own selection...