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Abolhassan Ali ebn-e Sahl Azhar Esfahani (Arabic: أبوالحسن علي بن سهل الأصفهاني) was a Persianmystic. He lived in the era of AbbasidCaliphAl-Mu'tadid and died in 894 in Isfahan. According to Spencer, he founded the first khanqah. His khanqah still exists and is also his mausoleum.