In the Quranic verse 32:16 Allah (swt) says:
“They arise from (their) beds,
they supplicate their Lord in fear and aspiration, and from what we have provided them, they spend’.
In this verse Allah (swt) says that those people who have faith in Him offer voluntary prayers in the middle of the night, they plead for Allah (swt)’s Forgiveness, they glorify Allah (swt) and they pray to Allah (swt) in a humble way. They aspire for Allah (swt)’s Mercy and they also fear His Wrath. They adopt a moderate approach in their worship of Allah (swt). Neither do they fear Allah (swt)’s Wrath so much that they lose hope of His Mercy and nor do they just hope for Allah (swt)’s Bounty while ignoring His Worship.
Towards the end of this verse Allah (swt) mentions about a sure sign of having Faith in Him, i.e. spending in the Way of Allah (swt). This highlights an important fact, i.e. those who are the true believers of Islam are not misers and they do not hoard wealth. Instead, they spend in charity and uphold the Islamic tradition of donation for charitable or noble causes. The mark of a true Muslim is that he obeys the Quranic Commands of offering charity for the upliftment of the poor and the deprived sections of the society.
Donation for a good cause such as the building of a mosque or for disaster relief is the best investment option for a Muslim because the returns are very high. Allah (swt) multiplies the good deeds and Grants great rewards to the generous amongst us, both in this transitory world and also in the life Hereafter.
Satan tries to dissuade the affluent amongst us from being generous by threatening us of poverty. If one gets fooled by the Satanic whispers then the person may hesitate before doing a noble deed of offering charity. He will suffer from irrational fears that the charity may reduce his wealth and make him poor. This is evident from the Quranic verse, 2:268, which says that,
‘Satan threatens you with poverty and enjoins you to be niggardly and Allah promises you Forgiveness from Him and Abundance;, and Allah is Ample- giving and Knowing’.
This verse shows that since Allah (swt) is Generous and showers upon us His Bounties so He does not like us to behave in a niggardly way just like Allah (swt) is All-Merciful and so He does not like us to inflict cruelty upon His creatures.