once
رَبِّ اغْفِرْ لِي، رَبِّ اغْفِرْ لِي
Edition transliteration
Rabbigh-fir lee, rabbigh-fir lee.
Meaning
My Lord forgive me, My Lord forgive me.
Source and references
Hisn al-Muslim, entry 48.The reference is copied from the edition; separate editorial verification is not complete yet.
Source edition: Fortress of the Muslim. Open source ↗