The following transmitteddu'a'...
The following transmitteddu'a', which takes its strength from Divine revelation, influences man to withdraw himself and to be alone with Allah, and shows him how to confess his sins and to understand that he is an evil-doer, and that he must devote his time to asking forgiveness from Allah, and reminding himself of his self-deception. Thus the reciter supplicates Allah from thedu'a' of Kumayl ibn Ziyad: Would that I knew my Lord, my Master!
How canst Thou bring down Fire on faces who fall d own in prostration to Thy Greatness, or on tongues who speak sincerely of Thy Unity and- thank Thee with their praises, or on hearts who attest to Thy Divinity with certainty, or on minds who have acquired knowledge of Thee to such an extent that they are humbled, or on limbs who have travelled afar to worship Thee obediently and to show their repentance through their submission to Thy Will.
We cannot imagine that Thou wilt deal with us thus; this is not what we have been taught of Thy Generosity. Repeat the recitation of this passage and reflect on the delicateness of the remonstrance, its eloquence and the enchantment of its exposition. At the same time as it inspires the soul to confess its short-comings and its servitude, it also instructs it not to despair of the Mercy and Kindness of Allah.
Then it speaks to the soul in a clever and subtle manner, and instructs it in its highest duties, and makes incumbent upon it the thorough performance of these duties. It teaches the soul how man, through the performance of these duties, may deserve the granting of forgiveness by Allah, and this is what causes man to listen to his soul and to do what is necessary for him to do, when formerly he was not carrying out his obligations.
Then follows another style of remonstrance from the samedu'a': Answer me, O my God, my Master and my Lord! I may endure Thy punishment, but how can I endure separation from Thee? O, answer me, my Lord! I may endure the heat of Hell, but how can I endure not to look upon Thy Munificence? This is instruction for the soul in the necessity of taking pleasure in the nearness of Allah, and observing His Kindness and His Power, and loving and desiring what He possesses.
Taking pleasure in nearness to Him may reach such a degree that to be without it is worse for the soul than punishment and the heat of Hell. It may be that man can endure the fire of Hell, but he cannot endure to be abandoned.