‭The Mystical teachings of al -Shadhili: including his life, prayers, letters, and followers: a translation from the Arabic of Ibn al - Sabbagh's Durrat al - Asrar wa Tuhtat al - Abrar‬[Book]‭/ by Elmer H. Douglas‬‭; edited with an introduction and a bibliography by Ibrahim M. Abu - Rabi.‬
(میستیکال تیچینگز )