Imam Malik (may Allah have mercy on him) says: Yahya bin Sa'id said to me: Select and write down for me one hundred hadith of Ibn Shihab; and he gave me an old parchment that had turned yellow. I wrote those hadith for him until I had filled it, and wrote them clearly. Imam Malik (may Allah have mercy on him) said: There are very few people from whom I learned knowledge who did not, before they died, come to me and seek a fatwa from me.
Hadith Referenceالسنن الكبرى للبيهقي / كتاب العتق / 21359