Abdullah ibn Amr reported: The Messenger of Allah, peace and blessings be upon him, said, “If the treasures of Persia and Rome were opened for you, what kind of people will you be?” Abdur Rahman ibn Awf said, “We will be as Allah has ordered us.” The Prophet said, “Perhaps you will be something else. You will compete with each other, then envy each other, then turn away from each other, then hate each other, and so on. Then you will go to the poor emigrants and make some of them masters over others.”

Source: Sahih Muslim 2962, Grade: Sahih (authentic) according to Muslim

Ibn Rajab reported: When the treasures of Khosrau were opened for Umar ibn Al-Khattab, he wept and he said, “Verily, the likes of this were never opened for people except that Allah made it cause discord between them.”

Source: Kashf Al-Kurbah 1/5

عَنْ عَبْدِ اللَّهِ بْنِ عَمْرِو بْنِ الْعَاصِ عَنْ رَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَنَّهُ قَالَ إِذَا فُتِحَتْ عَلَيْكُمْ فَارِسُ وَالرُّومُ أَيُّ قَوْمٍ أَنْتُمْ قَالَ عَبْدُ الرَّحْمَنِ بْنُ عَوْفٍ نَقُولُ كَمَا أَمَرَنَا اللَّهُ قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ أَوْ غَيْرَ ذَلِكَ تَتَنَافَسُونَ ثُمَّ تَتَحَاسَدُونَ ثُمَّ تَتَدَابَرُونَ ثُمَّ تَتَبَاغَضُونَ أَوْ نَحْوَ ذَلِكَ ثُمَّ تَنْطَلِقُونَ فِي مَسَاكِينِ الْمُهَاجِرِينَ فَتَجْعَلُونَ بَعْضَهُمْ عَلَى رِقَابِ بَعْضٍ

2962 صحيح مسلم كتاب الزهد والرقائق

عن ابن رجب ولما فتحت كنوز كسرى على عمر بن الخطاب رضي الله عنه بكى فقال إن هذا لم يفتح على قوم قط إلا جعل الله بأسهم بينهم

1/5 كشف الكربة في وصف أهل الغربة