Since you are in correspondence with the author, you are probably in the best position to make this determination. He calls it a nom de plume, which seems close enough to a pseudonym, so the simplest thing is to make the necessary connections between the NARs.
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Dear PCCLIST readers,
I'm in correspondence with T.J. Winter, editor of The remembrance of death and the afterlife, by Ghazzāli. Winter is the same person as Abdal Hakim Murad. He writes "Incidentally, you may have noticed that I also publish under my Arabic nom de plume Abdal Hakim Murad. For instance my book Commentary on the Eleventh Contentions." I had noticed, from the 400 fields in n 92084331. But I got suspicious and discovered that his Arabic name has been established separately, in nr 94042948.
Would you consider this to be a case of multiple bibliographic identities? If so, then the two NARs need to reflect that with links in 500 fields. Otherwise, they must be merged.
I wondered also as to how, when nr 94042948 was created, the action did not prompt a prohibitive warning that the data in field 100 (Murad, Abdal Hakim) normalizes to a 400 field in n 92084331 (Murad, Abdul-Hakim). Aha! It doesn't. Abdal is in the 100, Abdul in the 400. The corresponding 670 field, however, has Abdal-Hakim Murad as well as Abdulḣakim Murod. Whatever action is taken, care must be exercised here.
If an Arabic specialist is available for further assistance, I'd be grateful to hear, as also your opinions in general. I have edits to n 92084331 in preparation .
Sincerely - Ian
Cataloging and Metadata Services Librarian
George Mason University