Q 137: How can we compromise between the earlier Hadith and the Qur'anic verse that reads: {And it will be cried out to them: This is the Paradise which you have inherited for what you used to do}. (Al-A' raf, 43)?
A--- There is no contradiction between the previous Hadith and the Qur'anic verse. For the " deeds" mentioned in the verse are the cause behind entering Paradise and what is negated in the Hadith is the sense that the deeds turn not to be a mere cause, but they turn into a price paid for it. Indeed, if man lived the whole period of life of the world, fasting during the day, standing in prayer for Allah during the whole night, and avoiding all kinds of sins, the whole of his life would not be enough for meeting even one-tenth of the slightest blessing he is granted by Allah. How can it be then the price suitable for Paradise! {My Lord! Forgive and have mercy, for You are the Best of those who show mercy!}. (Al-Mu'minun, 118)
Reference: 200 FAQ On Muslims Belief - Shiekh Hafiz Ibn Ahmed Al Hakami