سُورَةُ الأَنفَالِ
Surah Al-Anfaal·8:28
وَاعْلَمُوا أَنَّمَا أَمْوَالُكُمْ وَأَوْلَادُكُمْ فِتْنَةٌ وَأَنَّ اللَّهَ عِنْدَهُ أَجْرٌ عَظِيمٌ٢٨
and know that your worldly goods and your children are but a trial and a temptation, and that with God there is a tremendous reward.