Verily! It is We Who have sent down the Quran to you (O Muhammad SAW) by stages. 23 Therefore wait patiently for the command of your Lord, and obey not from among them a sinner or an ungrateful one. 24 Mention the Name of your Lord, mornings and evenings. 25 And part of the night, prostrate thyself to Him; and glorify Him a long night through. 26 Verily those love the herein, and leave in front of them a heavy day. 27 It is We Who created them, and We have made their joints strong; but, when We will, We can substitute the like of them by a complete change. 28 This is indeed an advice; so whoever wishes may take the path towards his Lord. 29 Yet ye will not, unless Allah willeth. Lo! Allah is Knower, Wise. 30 He makes whom He pleases to enter into His mercy; and (as for) the unjust, He has prepared for them a painful chastisement. 31