There were 2 or more threads yesterday bringing up this same matter, but will less conviction. It clearly seems to be a Muslim reference, since the Islamic spelling of Ishmael is used. The question is, what else about this nut do we not know? Will we ever know?
There is no Arabic spelling of Ishmael/Ismail in Roman (our) letters. Arabic is Arabic and the equivalent “letters” used would be those that stand for the sounds represented in English as S-M-L. The equivalency between Arabic and English is rough because Arabic sounds are not identical or, in many cases, not even very close to English “equivalent” sounds.