Sahih al-Bukhari 563
صحيح البخاري#563SahihNarrated `Abdullah Al-Muzani:The Prophet (ﷺ) said, "Do not be influenced by bedouins regarding the name of your Maghrib prayer which is called `Isha' by them
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: 9:40