Musnad Ahmad 28:141

Hassan narrated to us, Ibn Lahi'ah narrated to us, Huyayy ibn Abdullah narrated to us, from Abu Abd al-Rahman al-Hubuli, from Abdullah ibn Amr: That the Messenger of Allah, peace and blessings of Allah be upon him, used to supplicate, saying: "O Allah, forgive us our sins, our wrongdoing, our jesting, our seriousness, and our intentional acts, and all of that is with us."