Whoever does not say specifically looks at the nature of the learners. Some of them understand it for the first time, and some of them do not understand except after detailing and repeating it time after time until he understands. He does not specify a specific number when he teaches others, which is like traveling, and he does not look at it in himself, which is like being at home. In himself, he might imagine that what appeared to him might be a suspicion, so he would examine it repeatedly, but there was no timing .