The warning regarding worldly pleasures, amusements and competing against each other
حَدَّثَنَا مُحَمَّدُ بْنُ الْمُثَنَّى، حَدَّثَنَا يَحْيَى، عَنْ إِسْمَاعِيلَ، قَالَ حَدَّثَنِي قَيْسٌ، قَالَ أَتَيْتُ خَبَّابًا وَهْوَ يَبْنِي حَائِطًا لَهُ فَقَالَ إِنَّ أَصْحَابَنَا الَّذِينَ مَضَوْا لَمْ تَنْقُصْهُمُ الدُّنْيَا شَيْئًا، وَإِنَّا أَصَبْنَا مِنْ بَعْدِهِمْ شَيْئًا، لاَ نَجِدُ لَهُ مَوْضِعًا إِلاَّ التُّرَابَ.
Narrated Qais: I came to Khabbab while he was building a wall, and he (Khabbab) said, "Our companions who have left this world, did not enjoy anything of their reward therein, while we have collected after them, much wealth that we cannot spend but on earth (i.e., on building).