It is narrated from Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Wherever the word qunut is mentioned in the Qur'an, it means obedience."
Imam al-Tabarani (may Allah have mercy on him) said: "This hadith is not narrated from Sayyiduna Abu Sa'id (may Allah be pleased with him) except with this chain."
Hadith Referenceالمعجم الأوسط / باب الميم / 5181
Hadith Takhrij«أخرجه ابن حبان فى «صحيحه» برقم: 309، وأحمد فى «مسنده» برقم: 11890، وأبو يعلى فى «مسنده» برقم: 1379، والطبراني فى «الأوسط» برقم: 1808»