Sahih al-Bukhari 5465
صحيح البخاري#5465SahihNarrated Aisha:The Prophet (ﷺ) said, "If the Iqama for (`Isha') prayer is proclaimed and supper is served, take your supper first
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: 70:94