The Messenger of Allah ﷺ said, "Praise be to Allah, Lord of the worlds is the Mother of the Quran, the Mother of the Book, and the Seven Oft-Repeated Verses."
حدثنا أحمد بن أبي شعيب الحراني حدثنا عيسى بن يونس حدثنا ابن أبي ذئب عن المقبري
قال رسول الله ﷺ الحمد لله رب العالمين أم القرآن وأم الكتاب والسبع المثاني
Bukhari related it in the Book of Tafsir, chapter on His saying, "And We have certainly given you seven of the often repeated [verses] and the great Quran" [Hijr 15:87], hadith no. 4704, from the hadith of Muhammad bin Abdul-Rahman bin Abu Dhib, with this chain.