Sahih Muslim 1356
صحيح مسلم#1356SahihAbu Huraira reported that when the Messenger of Allah (ﷺ) stood up for the second rak'ah he opened it with the recitation of the praise of Allah, the Lord of universe (al-Fatiha), and he did not observe silence (before the recitation of al-Fatiha)
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: 5:191