Sahih al-Bukhari 834
Book 10: Call to Prayers (Adhaan) · Hadith 227
Hadith text
Narrated Abu Bakr As-Siddiq:I asked Allah's Messenger (ﷺ) to teach me an invocation so that I may invoke Allah with it in my prayer. He told me to say, "Allahumma inni zalumtu nafsi zulman kathiran, Wala yaghfiru dh-dhunuba illa anta, fa ghfir li maghfiratan min `indika, wa r-hamni, innaka anta l-ghafuru r-rahim (O Allah! I have done great injustice to myself and none except You forgives sins, so bestow on me a forgiveness from You, and Have Mercy on me, You are the Forgiver, the Merciful)
Abu Bakr As-Siddiq (رضی اللہ عنہ) bataate hain: "Maine Allah ke Rasool se ek dua sikhane ko kaha jo main namaz mein padh sakoon. Aap ne mujhe kehne ko kaha: 'Allahumma inni zalamtu nafsi zulman kathiran, wala yaghfirudh-dhunuba illa anta, faghfir li maghfiratan min indika, warhamni, innaka antal-ghafurur-rahim' (Aye Allah! Maine apni jaan par bahut zulm kiya hai, aur gunah teri siwa koi maaf nahi karta, isliye mujhe apni taraf se maafi de aur mujhpar reham kar, tu hi bakshne wala, reham karne wala hai)."
Sahih al-Bukhari 834 · Book 10, Hadith 227