In the Quranic verse 57:7 Allah (swt) says:
‘Believe in Allah and His Messenger (Muhammad saw) and spend of what whereof He has made you trustees. And such of you as believe and spend in (Allah’s Way); theirs will be a great reward.
In this Quranic verse Allah (swt) has Commanded us to have faith in Him and His Messenger, Prophet Mohammad (saw). Allah (swt) has Commanded us to spend in His Way and has also reminded the prosperous people that the wealth which they possess actually belongs to Allah (swt). Allah (swt) has made the rich people trustees of His wealth in this world. Therefore, if Allah (swt) Commands the rich to spend out of His wealth then they ought to do so. Moreover, Allah (swt) also reminds the rich about the transitory nature of their worldly wealth. He says that the wealth of the rich people did not belong to them since ever and neither will it remain in their possession for ever. In the past their wealth had belonged to someone else and Allah (swt) made them the successors and handed over the wealth to them. Similarly, in the future the wealth will be passed on to the next generation. Hence, during the temporary phase of ownership of wealth, a man should spend it responsibly and as per the Wish of Allah (swt), .i.e. in His Way.
According to a hadith, on being asked by a person about the most rewarding charity, Prophet Mohammad (saw) said, ‘That you should give away in charity when you are hale and hearty, when you feel it could be saved and would like to invest it in the hope of earning more. Do not wait till one’s end is near when you may say, ‘Give this to so and so and that to so and so because by that time the wealth has to pass on to so and so, in any case. (Sahih Bukhari, Muslim)
According to another hadith Prophet Mohammad (saw) said, ‘Man says, ‘My wealth! My wealth! Whereas his share in his own wealth is no more than what is has consumed, or worn or distributed in charity. The remaining wealth will leave him and pass on to others. (Muslim)
These ahadith also prove that a person’s worldly possessions will leave him, sooner or later. When our worldly life is short-lived so how can our worldly wealth be long-lasting? So there is no point in too much attachment with one’s wealth. Moreover, since Allah (swt) Owns everything which is in this world and in the Heavens so there should be no hesitation on the part of His trustees, i.e. the rich, in spending in charity or donation.
Allah (swt) has Assured us of great rewards if we obey His Command and share our wealth by giving a donation for some good cause.