Virtues of the Qur'an

Bukhari :: Book 6 :: Volume 61 :: Hadith 516

Narrated 'Abdullah bin Mas'ud:

Surat Bani-lsrael, Al-Kahf (The Cave), Maryam, Taha, Al-Anbiya' (The prophets) are amongst my first earnings and my old property, and (in fact) they are my old property.