It is reported about Sayyiduna Abdullah: After finishing the recitation he would say the takbir, (then recite the qunut supplication), and after finishing the qunut he would again say the takbir and go into bowing.
Imam al-Tabarani recorded it in al-Mu'jam al-Kabir; its chain contains a narrator, Layth bin Abi Sulaym, who is thiqah (trustworthy), but he is a mudallis (one who conceals defects in the chain).
Hadith Referenceمجمع الزوائد ومنبع الفوائد / كتاب الصلاة / 2825