21.He who does a good deed will have ten times the amount of blessings, and I [Allah] shall give more, but he who does an evil deed will have an equivalent reward of evil, or I shall grant forgiveness. If anyone draws the length of a span near Me, I shall draw the length of a cubit near him, and if anyone draws the length of a cubit near Me, I shall draw the length of a fathom near him. If anyone comes to Me walking I shall come to him at a run, and if anyone meets me with sins of the size of the earth, but has not associated anything with Me, I shall meet him a similar amount of forgiveness.
(Muslim).
(Sayings of Muhammad (pbuh). by Prof. Ghazi Ahmad).