Dhu'l-Nun was asked: "What causes a devotee to be worthy of entrance to paradise?" He said: "One merits entrance to paradise by five things: unwavering constancy, unflagging effort, meditation on God in solitude and society, anticipating death by preparing provision for the hereafter, and bringing oneself to account before one is brought to judgment."
-'Attar, "Tadhkirat"
