It wasnarrated from Abu Hurairah that the Messenger of Allah (ﷺ)said:
"Richness is not an abundance of worldly goods, rather richnessiscontentment with one's lot." (TR)
English reference (TR): Vol. 5, Book 37, Hadith 4137 (TR)
Arabic reference (TR): Book 37, Hadith 4276 (TR)