Amr ibn Awf reported: The Messenger of Allah, peace and blessings be upon him, said, “By Allah, it is not poverty that I fear for you, but rather I fear you will be given the wealth of the world, just as it was given to those before you. You will compete for it just as they competed for it, and it will ruin you just as it ruined them.”
Source: Ṣaḥīḥ al-Bukhārī 3158, Ṣaḥīḥ Muslim 2961
Grade: Muttafaqun Alayhi (authenticity agreed upon) according to Al-Bukhari and Muslim
عَنْ عَمْرِو بْنِ عَوْفٍ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ وَاللَّهِ لَا الْفَقْرَ أَخْشَى عَلَيْكُمْ وَلَكِنْ أَخَشَى عَلَيْكُمْ أَنْ تُبْسَطَ عَلَيْكُمْ الدُّنْيَا كَمَا بُسِطَتْ عَلَى مَنْ كَانَ قَبْلَكُمْ فَتَنَافَسُوهَا كَمَا تَنَافَسُوهَا وَتُهْلِكَكُمْ كَمَا أَهْلَكَتْهُمْ
3158 صحيح البخاري كتاب الجزية باب الجزية والموادعة مع أهل الحرب
2961 صحيح مسلم كتاب الزهد والرقائق