Paratext
(Lower pastedown)
الرب [باق?] الوهاب الفتاح الغني المعطي
*Original paperback, cover. 
There is an arrow which connects these words with a set of calculations below. Possibly the numerical value of each word. 
References
- Genre Magic
الرب [باق?] الوهاب الفتاح الغني المعطي