[Pooya/Ali Commentary 21:47] Refer to the commentary of Araf: 8 and Kahf: 105. Imam Ali ibn abi Talib said: "A balance weighs things consisting of matter. So no one can weigh thoughts and deeds which are not corporeal, but if justice is taken as balance the weight of good deeds means its quantity to which sincerity adds quality; and weighing is reckoning to prove to the person concerned the actual position of his or her faith and conduct. Nothing is hidden from or unknown to Allah." Imam Ali bin Husayn Zayn al Abidin said: "Reckoning will be for the believers. The disbelievers will be punished outright according to the degree of their wickedness." It is also reported that figuratively it means that the thoughts and deeds of a believer will be compared with the thoughts and deeds of the Prophet or the Imam of the age in which he or she lived. Verse 47 of Ash Shura says that Allah has sent down the book with truth and the balance, i.e. the Holy Prophet to serve as the truest and the most perfect model of putting into practice the word of Allah. For giving reward every thought or deed will be assessed in the light of its nearness to the thought or deed of the prophet or the Imam in whose times the believer concerned had lived. The assessment of the quantity and quality will be done by the all-wise Lord who does not need any assistance. For the fate of deviators, hypocrites and disbelievers. See Araf: 9 and Kahf: 105 Aqa Mahdi Puya says: As the authority of Allah operates in justice, the reward and punishment will be awarded as it ought to be with measurable exactitude, for which a scale is necessary, a scale that can appraise the nature of the thing judged. For example to judge a thought, whether it is good or evil, a scale, different from the scale which weighs the weight of a material object, is required. Such scales should be infallible. They are those who have been selected by Allah. "Verily We sent Our messengers with clear proofs, and sent down with them the book and the scale, that people may establish themselves in justice." (Hadid: 25) The Holy Prophet said: "The love of Ali is the scale of faith, and hostility unto him is the scale of hypocrisy." Abu Talib said: "Muhammad is the scale of truth which weighs the minimum as well as the maximum weight ."