Hadith Qudsi 34

عَنْ أَنَسٍ رَضِيَ اللهُ عَنْهُ قَالَ : سَمِعْتُ رَسُوْلَ اللهِ صَلَّى الله عليه وسلم يَقُوْلُ : قَالَ اللهُ تَعَالَى : يَا ابْنَ آدَمَ، إِنَّكَ مَا دَعَوْتَنِي وَرَجَوْتَنِي غَفَرْتُ لَكَ عَلَى مَاكَانَ مِنْكَ وَلاَ أُبَالِي، يَا ابْنَ آدَمَ لَوْ بَلَغَتْ ذُنُوْبُكَ عَنَانَ السَّماَءِ ثُمَّ اسْتَغْفَرْتَنِي غَفَرْتُ لَكَ، يَا ابْنَ آدَمَ، إِنَّكَ لَوْ أَتَيْتَنِي بِقُرَابِ اْلأَرْضِ خَطاَياَ ثُمَّ لَقِيْتَنِي لاَ تُشْرِكْ بِي شَيْئاً لأَتَيْتُكَ
بِقُرَابِهَا مَغْفِرَةً
رواهُ الترمذي (وكذلك احمد) وسنده حسن


On the authority of Anas (may Allah be pleased with him), who said: I heard the Messenger of Allah (peace and blessings of Allah be upon him) say:

"Allah the Almighty said:

'O son of Adam, so long as you call upon Me and ask of Me, I shall forgive you for what you have done, and I shall not mind. O son of Adam, were your sins to reach the clouds of the sky and were you then to ask forgiveness of Me, I would forgive you. O son of Adam, were you to come to Me with sins nearly as great as the earth and were you then to face Me, ascribing no partner to Me, I would bring you forgiveness nearly as great as it.'"

It was related by at-Tirmidhi (also by Ahmad ibn Hanbal). Its chain of authorities is sound.