Quran Verses

*3). Even the best and the most devoted believers are liable to commit lapses. As long as man is man, it is impossible for his record to be filled exclusively with righteousness of the highest order and to be free from all lapses, shortcomings and weaknesses. Out of His infinite mercy, however, God overlooks man's shortcomings as long as he fulfils the basic duties incumbent upon him as God's servant, and favours him with a reward far greater than that warranted by his good works. Had it been a rule that man would be judged strictly on the basis of his deeds, that he would be punished for every evil deed and rewarded for every good deed, no man, howsoever righteous, would have escaped punishment.