Among what was revealed of the Quran was that ten known sucklings establish a prohibition of marriage. This was then abrogated by five known sucklings. The Messenger of Allah ﷺ passed away while these were still being recited as part of the Quran.
حدثنا يحيى بن يحيى قال قرأت على مالك عن عبد الله بن أبي بكر عن عمرة
كان فيما أنزل من القرآن عشر رضعات معلومات يحرمن ثم نسخن بخمس معلومات فتوفي رسول الله ﷺ وهن فيما يقرأ من القرآن