Sahih al-Bukhari, Hadith 4994 ⓘ
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.
حَدَّثَنَا آدَمُ، حَدَّثَنَا شُعْبَةُ، عَنْ أَبِي إِسْحَاقَ، قَالَ سَمِعْتُ عَبْدَ الرَّحْمَنِ بْنَ يَزِيدَ، سَمِعْتُ ابْنَ مَسْعُودٍ، يَقُولُ فِي بَنِي إِسْرَائِيلَ وَالْكَهْفِ وَمَرْيَمَ وَطَهَ وَالأَنْبِيَاءِ إِنَّهُنَّ مِنَ الْعِتَاقِ الأُوَلِ وَهُنَّ مِنْ تِلاَدِي.
also referenced under: Book 66, Hadith 16 (In-Book) & Volume 6, Book 61, Hadith 516 (USC-MSA)