Sahih al-Bukhari 5915
صحيح البخاري#5915SahihNarrated Ibn `Umar:I heard Allah's Messenger (ﷺ), while he was in the state of Ihram and his hair was stuck together with gum, saying, "Labbaik, Allahumma Labbaik, Labbaik La Sharika laka Labbaik. Inn-al-Hamda Wan-Ni'mata Laka wal-Mulk, La Sharika Lak." He did not add anything to those words
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: 77:130