Musannaf Ibn Abi Shayba 21:598

Waki’ narrated to us, he said: Ja’far ibn Burqan narrated to us, from Maymun ibn Mihran, who said regarding the recitation of Ubayy ibn Ka’b: "O Allah, we seek Your help and we seek Your forgiveness, and we praise You with goodness, and we do not disbelieve in You, and we cast off and abandon whoever acts wickedly against You. O Allah, You alone we worship, and to You we pray and prostrate, and to You we strive and hasten, and we hope for Your mercy and fear Your punishment; indeed, Your punishment will overtake the disbelievers."