Beholdest thou not that Allah - those hallow Him whosoever is in the heavens and the earth and the birds with wings outspread? Surely each one knoweth his prayer and his hallowing; and Allah is the Knower of that which they do. 41 And unto Allah belongeth the Sovereignty of the heavens and the earth, and unto Allah is the journeying. 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 Allah Who alternates the Night and the Day: verily in these things is an instructive example for those who have vision! 44 Allah created everything that walks from water. Some creep upon their bellies, others walk on two feet, and others walk on four. Allah creates whatever He will. Allah is Powerful over everything. 45 We have sent down clarifying verses. Allah guides whom He will to a Straight Path. 46 They say, "We have believed in God and the Messenger and we have obeyed them." Then a group of them turn away from their (belief). They are not believers. 47 And when they are called to [the words of] Allah and His Messenger to judge between them, at once a party of them turns aside [in refusal]. 48 However, if the truth be on their side, they come towards the Messenger in all obedience. 49 Are their hearts sick? Do they have doubts or are they afraid that God and His Messenger may do injustice to them? In fact, they, themselves, are unjust. 50