Marijn "i before j" van Putten 30 Apr 18
Replying to @PhDniX
One of the isoglosses between Ibn Kaṯīr's and ʾAbū Ǧaʿfar's reading is that ʾAbū Ǧaʿfar drops the hamza when it's a root initial consonant, and causes lengthening. so muʾminatin becomes mūminatin. We find this in the document. muʾminah would be spelled with dot after wāw