What the Prophet used to recite in the Fajr prayer of Friday
Abu Hurairah (radi Allahu anhu) narrated: “The Messenger of Allah (sal Allahu alaihi wa sallam) used to recite in the Fajr prayer of Friday, ‘Alif Lam Mim. Tanzeelul Kitab…’ (Surah 32) and ‘Hal ataa ‘alal insaani…’ (Surah 76)”
[Sahih Al-Bukhari and Muslim]
We benefit from the above Hadith that the Sunnah of the Prophet (sal Allahu alaihi wa sallam) was to recite in full Surat al-Sajdah (32) in the first rak’ah and Surat al-Insaan (76) in the second rak’ah of the Fajr prayer on Fridays.
And Allah knows best!