Sahih Muslim 1294
صحيح مسلم#1294SahihImran b. Husain reported:The Messenger of Allah (ﷺ) said three rak'ahs of the 'Asr prayer and then got up and went to his apartment. A man possessing large arms stood up and said: Messenger of Allah, bias the player been shortened? He came out angrily, and said the rak'ah which he had omitted and then gave salutation. then performed two prostrations of forgetfulness and then gave salutation
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih Muslim is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 5:132