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Hajji Khalifa, in his Lexicon (edited by Gustav Fluegel, 1964, Volume V pag 247 num 10877) places an scholar named Abu'Abdallah Ya'ish ibn Ibrahim al-Umawi as author of al-Istantaqat. Is it the same person? The dates are not coincident.--Ferran Mir (talk) 09:12, 4 May 2013 (UTC)[reply]