Ibn Sirin (may Allah have mercy on him) says that a person asked Hazrat Anas (may Allah be pleased with him) whether the Prophet (peace and blessings be upon him) recited Qunoot Nazilah. He replied, "Yes! After bowing (ruku’)." The same question was asked again: "Did he recite Qunoot Nazilah in the Fajr prayer?" He replied, "Yes! For some time, he recited it after bowing (ruku’)."