Sermon 78 of Nahj al-Balagha: Supplications of Amir al-mu’minin

O My God! Forgive me what Thou knowest about me more than I do. If I return (to the sins) Thou return to forgiveness. My God forgive me what I had promised to myself but Thou didst not find its fulfilment with me. My God forgive me that with what I sought nearness to Thee with my tongue but my heart opposed and did not perform it. My God forgive me winkings of the eye, vile utterances, desires of the heart and errors of speech.

Alternative Sources for Sermon 78
(1) Al-Jahiz, al-Mi'at al-mukhtarah.