Mercy of Allah in regards to Forgiveness
"O son of Adam, as long as you call upon Me and put your hope in Me, I have forgiven you for what you have done and I do not mind. O son of Adam, if your sins were to reach the clouds of the sky and then you would seek My forgiveness, I would forgive you. O son of Adam, if you were to come to Me with sins that are close to filling the earth and then you would meet Me without ascribing any partners with Me, I would certainly bring to you forgiveness close to filling it."
In this Hadithi Qudsi, Allah gives hope to mankind more than any other narration. It displays the quality and attribute of Allahs mercy. Indeed, He is ar-Rahman, the Most Compassionate, and ar-Raheem, the Most Merciful. In this Hadithi Qudsi, Allah tells man of the greatness of His forgiveness and mercy so that no one would despair due to the amount of sins he may have committed. This is supported by the following verse of the Holy Quran:
Say: O My servants who have transgressed against their own souls, despair not of the mercy of Allah. Indeed, Allah forgives all sins. Truly, He is Most Forgiving, Most Merciful. (Surah az-Zumar 39:53)
This hadith teaches us the importance of realizing Allahs mercy, having faith and hope in Him especially when making dua, calling to Allah alone for forgiveness, and the importance of repentance in the life and faith of a believer.