Sahih al-Bukhari 2448
صحيح البخاري#2448SahihNarrated Ibn `Abbas:The Prophet (ﷺ) sent Mu`adh to Yemen and said, "Be afraid, from the curse of the oppressed as there is no screen between his invocation and Allah
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: 46:9