Sahih al-Bukhari 878
صحيح البخاري#878SahihNarrated Ibn `Umar:While `Umar bin Al-Khattab was standing and delivering the sermon on a Friday, one of the companions of the Prophet, who was one of the foremost Muhajirs (emigrants) came. `Umar said to him, "What is the time now?" He replied, "I was busy and could not go back to my house till I heard the Adhan. I did not perform more than the ablution." Thereupon `Umar said to him, "Did you perform only the ablution although you know that Allah's Messenger (ﷺ) used to order us to take a bath (on Fridays)?
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: 11:3