It was narrated from Abu Malik Al-A that his father said: “I prayed behind the Messenger of Allah صلی اللہ علیہ وآلہ وسلم and he did not say the Qunut, and I prayed behind Abu Bakr and he did not say the Qunat, and I prayed behind ‘Umar and he did not say the Qunat, and I prayed behind ‘Uthman and he did not say the Qunilt, and I prayed behind ‘Ali and he did not say the Qunut.” Then he said: “my son, this is an innovation.” (Sahih)