Sahih al-Bukhari 891
صحيح البخاري#891SahihNarrated Abu Huraira:The Prophet (ﷺ) used to recite the following in the Fajr prayer of Friday, "Alif, Lam, Mim, Tanzil" (Suratas- Sajda #32) and "Hal-ata-ala-l-Insani" (i.e. Surah-Ad-Dahr)
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: 11:16