Whenever Anas narrated a hadith from the Messenger of Allah ﷺ and finished it, he would say, "Or as the Messenger of Allah ﷺ said."
حدثنا أبو قطن حدثنا ابن عون
كان أنس إذا حدث حديثا عن رسول الله ﷺ ففرغ منه قال أو كما قال رسول الله ﷺ
Its isnad is sahih, it has already appeared under 13396.