[55]. A man who has more than one wife will inevitably prefer, in his own heart, one over another. However, men are reminded to be mindful of Allāh and to be moderate and treat their wives on an equal footing. It is mandatory for a man to be absolutely even-handed in securing each wife her given marital rights, or else he will do better taking on only one wife. If a man has more than one wife, he has to treat them equally, whether they are Muslims or from among the People of the Book [i.e., Jewish or Christian]. If he does not treat them equally, then he has disobeyed Allāh and he has to make it up to the one whom he wronged. The Prophet Muhammad ﷺ said: “Whoever has two wives and leans towards (i.e. favours) one of them (over the other), will come on the Day of Resurrection with half of his body leaning.” What is meant by this “leaning” is favouring in terms of actions; a man will not be taken to task for the inclination of his heart if he treats (his wives) equally in practical terms.
[56]. Wakīl (Al-Wakīl) is one of the most Beautiful Names of Allāh. It means, the Sustainer of the Universe, its Preserver, the Dispenser of its affairs with His Knowledge and Wisdom, and the Witness of everything, Glory be His. This Name entails that Allāh is the Most Trustworthy, the Dependable Advocate of perfect resolution.
[57]. People who are heedless of Allāh are too eager to gain that which is worldly and think not of the life to come. Here, Allāh reminds them that it is with Him that the gains of not only this worldly life but also that of the Hereafter life. All the more reason, then, for them to pay Him heed.