5كَلّا لَو تَعلَمونَ عِلمَ اليَقينِMir Ahmed AliNay!1 Would that ye know it with the knowledgeI, of certitude nature.Men will know the real value of their motives and deeds as certainty of their knowledge, when they pass from this life to the hereafter and on the Day of Final Judgment. Certainty of knowledge has been described to have:—(1) What one only hears about —‘Ilmul-Yaqeen’, i.e., the mere information about what is said to a certainty. (2) What one sees with one’s eyes—the visual knowledge of that which exists ‘Ainul-Yaqeen’ as said in verse 7 below in this sura—seeing the Hell with the eyes. (3) The realisation or the knowledge proper is the personal experience with the thing, is ‘Haqqul-Yaqeen’ i.e., the realisation of the Truth about the thing as said in 69:51.‘Ilmul-Yaqeen’