I have been told that sawab is a unit of "naiki". It will be something that will be counted or weighed on the Judgement Day. Is this concept supported by Quran and hadith? Specifically, as a unit of measuring good deeds.
If not, what is the concept of "sawab" according to Quran and hadith?
Based on my search in quran, it is used in meaning of "reward" or "recompense", which can be both good or bad