[464] Spending in the cause of God in the manner and decorum detailed below is one of the greatest signs that a person truly Believes in resurrection and the Hereafter. Had he not firmly Believed, he would not have spent his livelihood thus (cf. al-Tawḥīḍī). Such a call to engaging in charity sums up the moral behind stories of resurrection and not living only for this world.
[465] This is due to the fact that spenders do not all have the same degree of sincerity. What they spend also differs in quality and usefulness and how much a charity is needed also determines its worth. (al-Ṭabarī, Ibn Kathīr, al-Saʿdī)
[466] Wāsiʿ, lit. outspread; that is His Generosity is outspread and wide open and no one should think that such a plentiful reward is an exaggeration. (al-Ṭabarī, Ibn Kathīr, al-Saʿdī)