We have indeed, sent down to you the Koran, a (clear) sending, 23 So persevere with the command of your Lord and do not pay any heed to the wicked and the unbelieving, 24 And remember the Name of your Lord every morning and afternoon [i.e. offering of the Morning (Fajr), Zuhr, and 'Asr prayers]. 25 And prostrate for Him in a part of the night, and proclaim His purity into the long night. 26 Those people [who are unmindful of God] aspire for immediate gains, and put behind them a Heavy Day. 27 [They will not admit to themselves that] it We who have created them and strengthened their make - and [that] if it be Our will We can replace them entirely with others of their kind. 28 This is an admonition: Whosoever will, let him take a (straight) Path to his Lord. 29 Yet ye will not, unless Allah willeth. Lo! Allah is Knower, Wise. 30 He admits to His Mercy whomsoever He pleases. As for the wrong-doers, He has prepared for them a grievous chastisement. 31