Sahih al-Bukhari 7119
صحيح البخاري#7119SahihNarrated Abu Huraira:Allah's Messenger (ﷺ) said, "Soon the river "Euphrates" will disclose the treasure (the mountain) of gold, so whoever will be present at that time should not take anything of it." Al-A'raj narrated from Abu Huraira that the Prophet (ﷺ) said the same but he said, "It (Euphrates) will uncover a mountain of gold (under it)
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 92:66