The book of fifty-seven questions
Date: End of the 9th or beginning of the 10th century
Original Language: Arabic
The book is no longer extant. A few fragments are preserved in quotations by al-Imām al-Qurṭubī, which suggest that it was an anti-Muslim polemical treatise in which the doctrine of the Trinity was explained in order to describe the various heresies that had arisen over it.
The main interest of this work lies in the evi…