"I heard the Messenger of Allah (ﷺ) reciting: 'Say: "O My slaves who have transgressed against themselves! Despair not of the mercy of Allah, verily, Allah forgives all sins and I do not mind (referring to 39:53)."

“Allah the Blessed and Exalted says: ‘O My slaves, all of you are sinners except those whom I have saved. So ask Me for forgiveness, I will forgive you. Whoever among you knows that I have the power to forgive and asks Me to forgive by My power, I will forgive him. All of you are astray except those whom I guide. Ask Me for guidance and I will guide you. All of you are poor except those whom I enrich (make independent of means). Ask of Me and I will grant you provision. Even if your living and your dead, your first and your last, your fresh and your dry, were all as pious as the most pious among My slaves, that would not increase my dominion as much as a gnat’s wing, and if they were to be as evil as the most evil among My slaves, that would not detract from My dominion as much as a gnat’s wing. Even if your living and your dead, your first and your last, your fresh and your dry, were to join together and each of them were to ask for all that he wishes for, that would only detract from My dominion as much as if one of you were to pass by the edge of the sea and dip a needle in it and withdraw it. That is because I am the Most Generous, Majestic. I give with a word; when I will something, all I do is say to it “Be!” – and it is.’”

Whatever you assert and whatever you call to is indeed good. But if you inform us that there is atonement of our past deeds (then we would embrace Islam). Then it was revealed: And those who call not unto another god along with Allah and slay not any soul which Allah has forbidden except in the cause of justice, nor commit fornication; and he who does this shall meet the requital of sin. Multiplied for him shall be the torment on the Day of Resurrection, and he shall therein abide disgraced, except him who repents a believes and does good deeds. Then these! for the Allah shall change their vices into virtues. Verily Allah is Ever Forgiving, Merciful (xxv. 68-70). Say thou: O my bondsmen woo have committed extravagance against themselves despair not of the Mercy of Allah I Verily Allah will forgive the sins altogether. He is indeed the Forgiving, the Merciful (xxxix. 53).

"O My servants, I have forbidden oppression for Myself and have made it forbidden amongst you, so do not oppress one another. O My servants, all of you are astray except for those I have guided, so seek guidance of Me and I shall guide you, O My servants, all of you are hungry except for those I have fed, so seek food of Me and I shall feed you. O My servants, all of you are naked except for those I have clothed, so seek clothing of Me and I shall clothe you. O My servants, you sin by night and by day, and I forgive all sins, so seek forgiveness of Me and I shall forgive you. O My servants, you will not attain harming Me so as to harm Me, and will not attain benefitting Me so as to benefit Me. O My servants, were the first of you and the last of you, the human of you and the jinn of you to be as pious as the most pious heart of any one man of you, that would not increase My dominion in anything. O My servants, were the first of you and the last of you, the human of you and the jinn of you to be as wicked as the most wicked heart of any one man of you, that would not decrease My dominion in anything. O My servants, were the first of you and the last of you, the human of you and the jinn of you to rise up in one place and make a request of Me, and were I to give everyone what he requested, that would not decrease what I have, any more that a needle decreases the sea if put into it. O My servants, it is but your deeds that I record for you and then recompense you for. So let him who finds good, praise Allah, and let him who finds other than that blame no one but himself." Sa'id said that when Abu Idris Khaulini narrated this hadith he knelt upon his knees.

“Allah, Blessed is He and Most High, said: ‘O son of Adam! Verily as long as you called upon Me and hoped in Me, I forgave you, despite whatever may have occurred from you, and I did not mind. O son of Adam! Were your sins to reach the clouds of the sky, then you sought forgiveness from Me, I would forgive you, and I would not mind. So son of Adam! If you came to me with sins nearly as great as the earth, and then you met Me not associating anything with Me, I would come to you with forgiveness nearly as great as it.’”