Tafsir of Al-Mu'minoon 23:25

إن هو إﻻ رجل به جنة

He is only a man in whom is madness, means, `he is crazy in his claim that Allah has sent him and chosen him from among you to receive revelation.'

فتربصوا به حتى حين

so wait for him a while. means, `wait until he dies, put up with him until you are rid of him.'