وَٱبْتَغِ فِيمَآ ءَاتَىٰكَ ٱللَّهُ ٱلدَّارَ ٱلْـَٔاخِرَةَ ۖ وَلَا تَنسَ نَصِيبَكَ مِنَ ٱلدُّنْيَا ۖ وَأَحْسِن كَمَآ أَحْسَنَ ٱللَّهُ إِلَيْكَ ۖ وَلَا تَبْغِ ٱلْفَسَادَ فِى ٱلْأَرْضِ ۖ إِنَّ ٱللَّهَ لَا يُحِبُّ ٱلْمُفْسِدِينَ Qur’an Al-Qasas (28:77)Wa i btaghi feem a a t a ka All a hu a l dd a ra al a khirata wal a tansa na s eebaka mina a l dduny a waa h sin kam a a h sana All a hu ilayka wal a tabghi alfas a da fee alar d i inna All a ha l a yu h ibbu almufsideen a
I.e., by spending in charity and on good causes.
Lit., "and do not forget . . .", etc.: a call to generosity and, at the same time, to moderation (cf. 2:143 -"We have willed you to be a community of the middle way").
That is, 'spend your wealth in charity and good works. It is Allah Who has given it to you, and you should spend it in Allah's cause. Nor should you forget the legitimate needs of this life, as misers do, and most people become misers who think too exclusively of their wealth'. If wealth is not used properly, there are three evils that follow: (1) its possessor may be a miser and forget all claims due to himself and those about him; (2) he may forget the higher needs of the poor and needy, or the good causes which require support; and (3) he may even misspend on occasions and cause a great deal of harm and mischief. Apparently Qarun had all three vices.