Appears 19 times in the Quran. (Root: عمل)
  1. So their Lord accepted their prayer: That I will not waste the work of a worker among you, whether male or female, the one of you being from the other; they, therefore, who fled and were turned out of their homes and persecuted in My way and who fought and were slain, I will most certainly cover their evil deeds, and I will most certainly make them enter gardens beneath which rivers flow; a reward from Allah, and with Allah is yet better reward.

  2. O you who believe! intoxicants and games of chance and (sacrificing to) stones set up and (dividing by) arrows are only an uncleanness, the Shaitan's work; shun it therefore that you may be successful.

  3. And others have confessed their faults, they have mingled a good deed and an evil one; may be Allah will turn to them (mercifully); surely Allah is Forgiving, Merciful.

  4. It did not beseem the people of Medina and those round about them of the dwellers of the desert to remain behind the Messenger of Allah, nor should they desire (anything) for themselves in preference to him; this is because there afflicts them not thirst or fatigue or hunger in Allah's way, nor do they tread a path which enrages the unbelievers, nor do they attain from the enemy what they attain, but a good work is written down to them on account of it; surely Allah does not waste the reward of the doers of good;

  5. And you are not (engaged) in any affair, nor do you recite concerning it any portion of the Quran, nor do you do any work but We are witnesses over you when you enter into it, and there does not lie concealed from your Lord the weight of an atom in the earth or in the heaven, nor any thing less than that nor greater, but it is in a clear book.

  6. So when they cast down, Musa said to them: What you have brought is deception; surely Allah will make it naught; surely Allah does not make the work of mischief-makers to thrive.

  7. And He it is Who created the heavens and the earth in six periods-- and His dominion (extends) on the water-- that He might manifest to you, which of you is best in action, and if you say, surely you shall be raised up after death, those who disbelieve would certainly say: This is nothing but clear magic.

  8. He said: O Nuh! surely he is not of your family; surely he is (the doer of) other than good deeds, therefore ask not of Me that of which you have no knowledge; surely I admonish you lest you may be of the ignorant

  9. Surely We have made whatever is on the earth an embellishment for it, so that We may try them (as to) which of them is best in works.

  10. Surely (as for) those who believe and do good, We do not waste the reward of him who does a good work.

  11. Say: Shall We inform you of the greatest losers in (their) deeds?

  12. Say: I am only a mortal like you; it is revealed to me that your god is one Allah, therefore whoever hopes to meet his Lord, he should do good deeds, and not join any one in the service of his Lord.

  13. And of the rebellious people there were those who dived for him and did other work besides that, and We kept guard over them;

  14. Nay, their hearts are in overwhelming ignorance with respect to it and they have besides this other deeds which they do.

  15. And We will proceed to what they have done of deeds, so We shall render them as scattered floating dust.

  16. Except him who repents and believes and does a good deed; so these are they of whom Allah changes the evil deeds to good ones; and Allah is Forgiving, Merciful.

  17. And he went into the city at a time of unvigilance on the part of its people, so he found therein two men fighting, one being of his party and the other of his foes, and he who was of his party cried out to him for help against him who was of his enemies, so Musa struck him with his fist and killed him. He said: This is on account of the Shaitan's doing; surely he is an enemy, openly leading astray.

  18. Whoever desires honor, then to Allah belongs the honor wholly. To Him do ascend the good words; and the good deeds, lift them up, and (as for) those who plan evil deeds, they shall have a severe chastisement; and (as for) their plan, it shall perish.

  19. Who created death and life that He may try you-- which of you is best in deeds; and He is the Mighty, the Forgiving,