﴿ وَأَصْبَحَ ٱلَّذِينَ تَمَنَّوْا۟ مَكَانَهُۥ بِٱلْأَمْسِ يَقُولُونَ وَيْكَأَنَّ ٱللَّهَ يَبْسُطُ ٱلرِّزْقَ لِمَن يَشَآءُ مِنْ عِبَادِهِۦ وَيَقْدِرُ ۖ لَوْلَآ أَن مَّنَّ ٱللَّهُ عَلَيْنَا لَخَسَفَ بِنَا ۖ وَيْكَأَنَّهُۥ لَا يُفْلِحُ ٱلْكَٰفِرُونَ ﴾

“And on the morrow, those who but yesterday had longed to be in his place exclaimed: “Alas [for our not having been aware] that it is indeed God [alone] who grants abundant sustenance, or gives it in scant measure, unto whichever He wills of His crea­tures! Had not God been gracious to us, He might have caused [the earth] to swallow us, too! Alas [for our having forgotten] that those who deny the truth can never attain to a happy state!””

وَقَالَ الَّذِينَ أُوتُوا الْعِلْمَ وَيْلَكُمْ (And said those who were given knowledge - 28:80). This verse has compared the knowledgeable persons with الَّذِينَ يُرِ‌يدُونَ الْحَيَاةَ الدُّنْيَا (Those who are desirous of the worldly life - 28:79), which clearly indicates that it is not the trait of knowledgeable persons to aspire for the acquisition of wealth and to make it the object of life. They always keep their eyes toward the lasting benefits of the Hereafter. As for the mundane wealth, they take it only to fulfill their day-to-day needs, and stay content with that.