Sa’d bin Tariq said:“I said to my father: ‘O my father! You prayed behind the Messenger of Allah (ﷺ) and behind Abu Bakr, ‘Umar and ‘Uthman, and behind ‘Ali here in Kufah for about five years. Did they recite Qunut in Fajr?’ He said: ‘O my son! That is an innovation.’”

English translation · Sunan Ibn Majah