Never say of something, "I shall do it tomorrow," 23 without [adding,] "if God so wills." And if thou shouldst forget [thyself at the time, and become aware of it later,] call thy Sustainer to mind and say: "I pray that my Sustainer guide me, even closer than this, to a consciousness of what is right!" 24 And (it is said) they tarried in their Cave three hundred years and add nine. 25 Say: "God knows best how long they remained [there]. His [alone] is the knowledge of the hidden reality of the heavens and the earth: how well does He see and hear! No guardian have they apart from Him, since He allots to no one a share in His rule!" 26 Recite what has been revealed to you of the Book of your Lord. There is no one who can change the word of God; and you will not find refuge except in Him. 27 And endure thy self in the company of those who call upon their Lord in the morning and evening seeking His countenance, and let not thine eyes rove from them seeking the adornment of the life of this world, and obey thou not him whose heart We have made to neglect Our remembrance, and who followeth his lust, and whose affair is exceeding the bound. 28 Say: (It is) the truth from the Lord of you (all). Then whosoever will, let him believe, and whosoever will, let him disbelieve. Lo! We have prepared for disbelievers Fire. Its tent encloseth them. If they ask for showers, they will be showered with water like to molten lead which burneth the faces. Calamitous the drink and ill the resting-place! 29 Lo! as for those who believe and do good works - Lo! We suffer not the reward of one whose work is goodly to be lost. 30 they shall dwell in the Gardens of eternity where rivers flow at their feet. Reclining upon raised couches, they will be adorned with bracelets of gold, and will wear green robes of fine silk and heavy brocade. An excellent reward and an excellent resting place! 31