Musnad Abu Ya'la al-Mawsili 151:63

Muhammad narrated to us, Yusuf bin Yazid—meaning Abu Ma'shar—narrated to us, Abu Hamzah narrated to us, from Ibrahim, from Alqamah, from Abdullah, who said: The Messenger of Allah (may Allah bless him and grant him peace) performed Qunut for a month, supplicating against Usayyah and Dhakwan. When he prevailed over them, he ceased the Qunut.