Musannaf Ibn Abi Shayba 21:697

Abu Mu'awiyah narrated to us, from Layth, from Tawus, who said: "The chapter 'Alif Lam Mim Tanzil' (Surah As-Sajdah) and 'Tabarak Alladhi Biyadihi Al-Mulk' (Surah Al-Mulk) have been favored over the rest of the Quran by sixty good deeds."