Abu Mutarrif reported: I came to the Prophet, peace and blessings be upon him, while he was reciting the verse, “Competition for wealth diverts you,” (102:1). The Prophet said, “The son of Adam boasts: My wealth! My wealth! O son of Adam, have you truly earned any wealth but what you ate and consumed, or put on and wore out, or spent in charity so it remained?”
Source: Ṣaḥīḥ Muslim 2958
Grade: Sahih (authentic) according to Muslim
عَنْ أَبِي مُطَرِّفٍ قَالَ أَتَيْتُ النَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَهُوَ يَقْرَأُ أَلْهَاكُمْ التَّكَاثُرُ قَالَ يَقُولُ ابْنُ آدَمَ مَالِي مَالِي قَالَ وَهَلْ لَكَ يَا ابْنَ آدَمَ مِنْ مَالِكَ إِلَّا مَا أَكَلْتَ فَأَفْنَيْتَ أَوْ لَبِسْتَ فَأَبْلَيْتَ أَوْ تَصَدَّقْتَ فَأَمْضَيْتَ
2958 صحيح مسلم كتاب الزهد والرقائق