Sahih Muslim 2420
صحيح مسلم#2420SahihAbu Huraira reported that the Messenger of Allah (ﷺ) had said:Richness does not lie in the abundance of (worldly) goods but richness is the richness of the soul (heart, self)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 12:157