1508 — Musaddad and Sulayman ibn Dawud al-Ataki narrated to us — and this is the hadith of Musaddad — they said: al-Mu'tamir narrated to us, I heard Dawud al-Tafawi, Abu Muslim al-Bajali narrated to me, from Zayd ibn Arqam: I heard the Prophet of Allah, peace and blessings be upon him, say — and Sulayman said: The Messenger of Allah, peace and blessings be upon him, used to say after his prayer: "O Allah, our Lord and Lord of everything, I bear witness that You are the Lord alone, with no partner to You. O Allah, our Lord and Lord of everything, I bear witness that Muhammad is Your servant and Your Messenger. O Allah, our Lord and Lord of everything, I bear witness that all servants are brothers. O Allah, our Lord and Lord of everything, make me sincere to You, and my family, at every moment in this world and the Hereafter. O Possessor of Majesty and Honor, hear and respond. Allah is the Greatest, the Most Great. O Allah, Light of the heavens and the earth — Sulayman ibn Dawud said: Lord of the heavens and the earth — Allah is the Greatest, the Most Great. Allah is sufficient for me, and He is the best Disposer of affairs. Allah is the Greatest, the Most Great."(1)

1509 — Ubaydullah ibn Mu'adh narrated to us, he said: my father narrated to us, Abd al-Aziz ibn Abi Salamah narrated to us, from his uncle al-Majishun ibn Abi Salamah, from Abd al-Rahman al-A'raj, from Ubaydullah ibn Abi Rafi', from Ali ibn Abi Talib, who said: The Prophet, peace and blessings be upon him, when he concluded the prayer with the taslim, would say: "O Allah, forgive me what I have done before and what I have delayed, what I have kept secret and what I have done openly."

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(1) Its chain is weak due to the weakness of Dawud al-Tafawi — who is Ibn Rashid — and due to the unknown status of Abu Muslim al-Bajali. Musaddad: he is Ibn Musarhad al-Asadi, and Ibrahim ibn Mahdi: he is al-Misisi, and Mu'tamir: he is Ibn Sulayman.
Al-Nasa'i also recorded it in al-Kubra (9849) via the path of Muhammad ibn Abd al-A'la from Mu'tamir ibn Sulayman, with this chain.
It is also in Musnad Ahmad (19293).