as-Sayyid ar-Radi says: "az-zanun" is the loan about which the lender does not know whether he will be able to recover it from the borrower. He is like the one who hopes as well as loses hope. This is the most eloquent way of expression. In this way everything about which you do not know where you stand would be zanun. In the same strain poet al-A' sha (Maymun ibn Qays al-Wa'ili [d. 7/629] )says: