Sahih Muslim 2418
صحيح مسلم#2418SahihIbn Abbas reported Allah's Messenger (ﷺ) as saying:If there were for the son of Adam a valley full of riches, he would long to possess another one like it. and Ibn Adam does not feel satiated but with dust. And Allah returns to him who returns (to Him). Ibn Abbas said: I do not know whether it is from the Qur'an or not; and in the narration transmitted by Zuhair it was said: I do not know whether it is from the Qur'an, and he made no mention of Ibn Abbas
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: 12:155