Yefet ben Ali was perhaps the foremost Karaite commentator on the Bible, during the "Golden Age of Karaism". He lived during the 10th century, a native of Basra (in present-day Iraq) Later in his life, he moved to Jerusalem, between 950 and 980, where he died. The Karaites distinguished him by the epithet "maskil ha-Golah" (teacher of the Exile). His commentaries were written in Arabic, and covered the entire "Tanakh". Wikipedia
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