Sahih Muslim 1359
صحيح مسلم#1359SahihAbu Huraira reported:I heard the Messenger of Allah (ﷺ) saying: When the Iqama has been pronounced for prayer, do not go running to it, but go walking in tranquillity and pray what you are in time for, and complete what you have missed
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: 5:194