I love this hadith on forgiveness, MashaAllah, it's amazing to know how compassionate is Allah until He is willing to forgive our sins even if they reach the clouds of the sky, how great is His forgiveness.
On the authority of Anas, who said: I heard the messenger of Allah (PBUH) say:
Allah the Almighty has 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 its.”