And do not say of anything: Surely I will do it tomorrow, 23 without adding, "if God wills." Recall your Lord if you forget to do something. Say, "I hope that my Lord will provide me better guidance." 24 So they stayed in their Cave three hundred years, and (some) add nine (more) 25 Say, "God knows best how long they stayed in it." Only God has knowledge of the unseen in the heavens and on the earth. How well He sees and how well He hears! Man has no other guardian besides Him. He allows none to share His sovereignty. 26 Recite what has been revealed to thee of the Book of thy Lord; no man can change His words. Apart from Him, thou wilt find no refuge. 27 And be patient with those who call to their Lord in the morning and evening, desiring His Face. And do not turn your eyes away from them desiring the good things of this life, nor obey he whose heart We have made neglectful of Our remembrance; so that he follows his own lust, and his affair has become excessive. 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 Surely those who believe, and do deeds of righteousness -- surely We leave not to waste the wage of him who does good works; 30 Those, they shall live in the Gardens of Eden, underneath which rivers flow. They shall be adorned with bracelets of gold and arrayed in green garments of silk, and brocade, reclining therein on couches; how excellent is their reward and how fine is their resting place! 31