Ayesha was asked about the character of the Messenger of Allah ﷺ. She replied, "His character was the Quran."
حدثنا إسماعيل عن يونس
سئلت عائشة عن خلق رسول الله ﷺ فقالت كان خلقه القرآن
Its chain of transmission is sahih. It was mentioned previously in 25178.