Surah Hud (Hud) 11 : 16

Explanatory Note
 
Having accepted this rule, we must not forget that these very people could have gone about their lives doing the same things but pinning their aspirations to the hereafter and observing God’s laws in their lives. Had they done so, they would have had, as a result, the same bounties in this world and received, in addition, the bounties of the life to come.
 
To work for the hereafter is no impediment to working for this world. Indeed it is the same action provided that it is done with an eye to earning God’s pleasure. To observe God’s laws does not limit our scope of action or reduce its effects. Indeed, it increases and blesses both the effort and the result: it makes both our earnings and our enjoyment of what we earn good and blessed, and then it enhances our enjoyment of the limitless pleasures in the hereafter. The only restriction is that we should not seek the enjoyment of what is forbidden. For what is forbidden leads to ruin, not only in the hereafter, but here as well, though the latter may be delayed. This law of nature applies to both individuals and communities alike. History is a witness to the destiny of every community which over-indulged itself in forbidden desires.