He was asked about the gray hairs of the Prophet ﷺ, and he replied, "Allah did not disfigure him with a single white hair."
أنه سئل عن شيب النبي ﷺ؟ فقال: ما شانه الله ببيضاء.
Muslim reported it in the Book of Virtues (2341:105) through several routes from Abu Dawud Sulayman bin Dawud, that is Tayalisi, who said, Shubah narrated to us, from Khulayd bin Jafar, who heard Abu Iyas, from Anas, that he was asked and he related it.