Arabic term, origin 'decide a point of law' (5)

I believe the answer is:

fatwa

(Other definitions for fatwa that I've seen before include "Legal ruling by Islamic leader, as against Salman Rushdie" , "Ruling or sentence by Islamic religious leader" , "Religious decree issued by a Muslim leader" , "Islamic opinion" , "Muslim ruling" .)

I've seen this clue in The Guardian.

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