And say not of anything: Lo! I shall do that tomorrow, 23 unless Allah should will it. And should you forget (and make such a statement), remember your Lord and say: "I expect my Lord to guide me to what is nearer to rectitude than this." 24 And they stayed in their Cave three hundred (solar) years, and add nine (for lunar years). 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 And recite, [O Muhammad], what has been revealed to you of the Book of your Lord. There is no changer of His words, and never will you find in other than Him a refuge. 27 Persevere with those who call on their Lord morning and evening, seeking His magnificence. Do not turn your eyes away from them, seeking the splendours of this world, and do not follow him whose heart We have made oblivious to Our remembrance, who follows his own lust and exceeds the bound. 28 And proclaim: "This is the Truth from your Lord. Now let him who will, believe; and let him who will, disbelieve. We have prepared a Fire for the wrong-doers whose billowing folds encompass them. If they ask for water, they will be served with a drink like dregs of oil that will scald their faces. How dreadful a drink, and how evil an abode! 29 As for those who believe and do good We shall not cause their reward to be lost. 30 These! for them are Gardens Everlasting whereunder rivers flow; bedecked they shall be therein with bracelets of gold, and wear they shall green robes of satin and brocade, reclining therein on the couches; excellent the reward, and goodly the resting-place! 31