Do you not observe that all those who are in the heavens and the earth, and the birds with outspread wings, glorify Allah? Each one knows the mode of its prayer and glorification, and Allah has full knowledge of all they do. 41 And for Allah only is the kingship of the heavens and the earth; and towards Allah is the return. 42 See you not that Allah drives the clouds gently, then joins them together, then makes them into a heap of layers, and you see the rain comes forth from between them. And He sends down from the sky hail (like) mountains, (or there are in the heaven mountains of hail from where He sends down hail), and strike therewith whom He will, and averts it from whom He wills. The vivid flash of its (clouds) lightning nearly blinds the sight. [Tafsir At-Tabari]. 43 It is God who alternates night and day. There is surely a lesson in this for men of sight. 44 Allah hath created every moving creature of water; of them is one that walketh upon his belly; and of them is one that walketh upon its two feet; and of them is one that walketh upon four. Allah createth whatsoever He listeth; verily Allah is over everything Potent. 45 We have indeed sent down signs that make things manifest: and Allah guides whom He wills to a way that is straight. 46 And they say: We believe in Allah and the messenger, and we obey; then after that a faction of them turn away. Such are not believers. 47 And when they appeal unto Allah and His messenger to judge between them, lo! a faction of them are averse; 48 But if the right is with them, they come to him willingly with submission. 49 Are their hearts diseased, or do they have doubts, or do they fear that Allah and His Noble Messenger will oppress them? In fact they themselves are the unjust. 50