Allah (swt) says in the Holy Quran:
‘The believers are only those who when Allah is mentioned their hearts become fearful, and when His verses are recited to them, they increase their faith and they put their trust in their Lord (alone)’ (TMQ-8:2)
‘Those who keep up their prayer and
From what We have provided them, they spend’. (TMQ-8:3)
In the above mentioned Quranic verses, Allah (swt) has described the characteristics found in the true believers of Islam. Firstly, the believers follow Allah (swt) and His Messenger (saw). Secondly, when the believers hear about Allah (swt) their hearts tremble with fear due to Allah (swt) Omnipotence, Omnipresence and Omniscience. Thirdly, the faith of the believers gets refreshed and strengthened when they listen to the Quranic verses. Fourthly, the believers have absolute trust in Allah (swt). Fifthly, the believers are punctual in offering Salaah and lastly, they spend in the Way of Allah (swt) from what He has provided them.
So, we find that giving charity for the upliftment of the poor or giving donation for furthering some noble cause is the sign of a true believer. Those who lack farsightedness and who are greedy end up in a vicious circle. They become stingy and they try to hoard wealth as much as they can and while doing so they do not give charity or help others. Soon a time comes when their end draws near and it is then that such misers realize that they had been engaged in a useless exercise throughout their life. Ultimately they will have to leave this world empty-handed. However, by the time they realize their mistake, it is too late. We get this worldly life only once and it is during this lifetime that we are supposed to earn as much rewards from Allah (swt) as we can. Sharing our wealth for some Islamic cause either through charity or donation is a noble way by which we can appease Allah (swt) during our lifetime. If we spend our entire lifetime trying to fulfill our own selfish, materialistic desires then a time will come when we will have to face the ultimate reality of death but at that hour, we will not be granted a second chance to set things right. If we repent at the time of death then it shall be too late by then.
Therefore, we should utilize this worldly life which Allah (swt) has granted to us and we should try to spend our wealth as Allah (swt) has Commanded us, so that we are counted amongst the pious slaves of Allah (swt).