Al Dani's famous work and classic text on the various numbering system employed in the Quran. He counts all the words, letters, verses, and chapters, in detailed count. By Abu Amr al-Dani (d. 444/1053), an Andalusian a scholar of Qur'anic readings and an interpreter. Also known in his time as Ibn al-Serafi, the full name is Abu Amr Uthman ibn Sa'id al-Dani al-Andalusi.