Caution: Translations of Quran and Ḥadīth may lead to possible misapplications and misinterpretations. This site is intended for students of sacred knowledge that are proficient in comprehending classical Arabic and have a strong foundation in Islamic sciences. Also note that religious injunctions rely on several aspects beyond what one may glean through reading individual aḥādīth.
Qurʾān Bukhārī Muslim Nasāʾī Abū Dāwūd Tirmidhī Ibn Mājah Mālik Aḥmad Dārimī Ḥākim Ibn Ḥibbān Ṭabarānī Nasāʾī's Kubrá Bayhaqī al-Luʾluʾ wa-al-Marjān Ibn Rajab's Fifty Riyāḍ al-Ṣāliḥīn Aḥmad's Zuhd Suyūṭī
quran:8:28 –

And know that your properties and your children are but a trial and that Allah has with Him a great reward.  

And know that your wealth and your children are a trial, for you, impeding you from the concerns of the Hereafter; and that with God is a tremendous wage, so do not forfeit it by giving ˹undue˺ attention to wealth and children, acting treacherously for the sake of ˹preserving˺ them.
القرآن:٨:٢٨ –

وَاعْلَمُوا أَنَّمَا أَمْوَالُكُمْ وَأَوْلَادُكُمْ فِتْنَةٌ وَأَنَّ اللَّهَ عِنْدَهُ أَجْرٌ عَظِيمٌ  

{واعلموا أنما أموالكم وأولادُكم فتنهٌ} لكم صادة عن أمور الآخرة {وأن الله عنده أجر عظيم} فلا تفوِّتوه بمراعاة الأموال والأولاد والخيانة لأجلهم، ونزل في توبته.

See similar narrations below:

Collected by Qurʾān
quran:64:15 –

Your wealth and your children are but a trial, and Allah has with Him a great reward.  

Your possessions and your children are only a trial, for you, distracting ˹you˺ from the concerns of the Hereafter, and God — with Him is a great reward, so do not forfeit it by preoccupying yourselves with possessions and children.
القرآن:٦٤:١٥ –

إِنَّمَا أَمْوَالُكُمْ وَأَوْلَادُكُمْ فِتْنَةٌ ۚ وَاللَّهُ عِنْدَهُ أَجْرٌ عَظِيمٌ  

{إنما أموالكم وأولادكم فتنة} لكم شاغلة عن أمور الآخرة {والله عنده أجر عظيم} فلا تفوتوه باشتغالكم بالأموال والأولاد.