…Ask the People of Remembrance, if you do not know.He said:That is, the people who possess understanding of God and those who have knowledge of God, His commands and His days (ayyām). They said: ‘Describe them for us.’ He replied:Those possessed of knowledge are of three [kinds]. There are those who have knowledge of God but do not know His commandments or His days; they are the generality of the believers. There are those who have knowledge of God and His commandments but not of His days; they are the learned scholars. Then there are those who have knowledge of God, His commandments and His days; they are the prophets and veracious (ṣiddīqūn).His words, Exalted is He: