Sayyiduna Abdullah bin Umar says: Do you think that your standing after finishing the recitation of the surah is the qunut? By Allah, this is an innovation (bid'ah). The Prophet (peace and blessings be upon him) did not do this; he did it only for one month and then abandoned it. Do you people think that your raising your hands during the prayer (is correct)? By Allah, this is an innovation. The Messenger of Allah did not do more than this. Then he raised both his hands up to his shoulders.
Imam al-Tabarani recorded it in al-Mu'jam al-Kabir; its chain contains a narrator, Bishr bin Harb, whom Imam Ahmad, Yahya bin Ma'in, Abu Zur'ah, Abu Hatim and Imam al-Nasa'i (may Allah have mercy on him) declared da'if (weak), while Ayyub and Ibn Adi declared him thiqah (trustworthy).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 2821