Sahih al-Bukhari 1187
صحيح البخاري#1187SahihNarrated Ibn `Umar:Allah's Messenger (ﷺ) said, "Offer some of your prayers in your houses and do not make them graves
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: 19:63