Scale of deeds
«و نضع الموازين القسط ليوم القيمة فلا تظلم نفس شيئا و ان کان مثقال حبة من خردل اتينا بها و کفي بنا حاسبين. Surah alanbia
47. We shall set up scales of justice for the Day of Judgment, so that not a soul will be dealt with unjustly In the least, and if there be (no more than) the weight of a mustard seed, we will bring it (to account): and Enough are we to take account.
کل نفس بما کسبت رهينة،. surah almoddather
38. Every soul will be (held) In pledge for its deeds.

فاما من ثقلت موازينه فهو في عيشة راضية×و اما من خفت موازينه فامه هاوية، !»
surah alghareah
6. Then, He whose balance (of good deeds) will be (found) heavy,
7. Will be In a life of good pleasure and satisfaction.
8. But He whose balance (of good deeds) will be (found) light,-
9. Will have His home In a (bottomless) Pit.