Sahih al-Bukhari 970
صحيح البخاري#970SahihNarrated Muhammad bin Abi Bakr Al-Thaqafi:While we were going from Mina to `Arafat, I asked Anas bin Malik, about Talbiya, "How did you use to say Talbiya in the company of the Prophet?" Anas said: "People used to say Talbiya and their saying was not objected to and they used to say Takbir and that was not objected to either
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: 13:19