A hadith of Muadh ibn Jabal on ijtihad of opinion, a hadith study

A hadith with Muadh ibn Jabal about ijtihad of opinion, Hadith study, cover type: regular cover, first edition, number of pages: 112, paper type: Beliya, publisher: Dar Al-Muqtasib – Beirut – Lebanon, size: 17*24, author: Al-Hussein Boudami, book code: 23603299