Originally published in 1969.

This volume was composed by an eminent Sufi mystic whilst in prison in Baghdad, awaiting execution, in a vain attempt to overthrow his sentence; he was put to death in AD 1311 at the age of 33. This apologia is a document of great poignancy, composed in most elegant Arabic and translated with the customary skill and elegance for which A J Arberry became so well-known.