It was narrated from Ibn "Abbas that

The Messenger of Allah (ﷺ) used to recite in Fajr prayer on Friday, Tanzeel (Soorat as-Sajdah) and Hal ata 'alal-insan (Soorat al-Insan). 'Affan said: Alif-Lam-Meem Tanzeel (Soorat as-Sajdah).