The transient nature of worldly possessions

ءَامِنُوا۟ بِٱللَّهِ وَرَسُولِهِۦ وَأَنفِقُوا۟ مِمَّا جَعَلَكُم مُّسْتَخْلَفِينَ فِيهِ ۖ فَٱلَّذِينَ ءَامَنُوا۟ مِنكُمْ وَأَنفَقُوا۟ لَهُمْ أَجْرٌ كَبِيرٌ

Believe in Allāh and His Messenger and spend out of that in which He has made you successive inheritors. For those who have believed among you and spent, there will be a great reward.

أَن كَانَ ذَا مَالٍ وَبَنِينَ

Because he is a possessor of wealth and children,