Джами ат-Тирмизи #2317

لَيْسَ الْغِنَى عَنْ كَثْرَةِ الْعَرَضِ وَلَكِنَّ الْغِنَى غِنَى النَّفْسِ

The Messenger of Allah (ﷺ) said: 'Richness is not having many possessions. Rather, true richness is the richness of the soul.'