Hadithcore
Riyad as-Salihin, 480

Ka'b bin 'Iyad (May Allah be pleased with him) reported:

Messenger of Allah (ﷺ) said, "Verily, there is a Fitnah (trial) for every nation and the trial for my nation (or Ummah) is wealth." <b>[At- Tirmidhi, who classified it as Hadith Hasan Sahih]</b>.

وعن كعب بن عياض، رضي الله عنه، وقال سمعت رسول الله، صلى الله عليه وسلم ، يقول‏:‏ ‏

‏ إن لكل أمة فتنة، وفتنة أمتى المال‏

‏ ‏(‏‏(‏رواه الترمذي وقال‏:‏ حديث حسن صحيح‏)‏‏)‏‏.‏

References1 variant
In-Book Reference
Introduction, Hadith 480
Sharh · explanationclick to expand
<b>Guidance from the Hadith:</b><br> 1) Putting people to test through temptations is the norm of Allah in every nation. “Blissful is he who is spared temptation and he who is tested and shows patience.”<br> 2) Keenness on amassing wealth ruins relationships, as it results in stinginess, which in turn leads to severance of kinship ties. {So would you perhaps, if you turned away, cause corruption on earth and sever your kinship ties?}<br> 3) A person should renounce worldly vanities and desire the Hereafter. Let the worldly possessions be in one’s hands, not in the heart.<br> 4) A wise person would treat wealth like a bathroom, which is indispensable but not desirable.