Over here, ray posits that the validity of certain schools of Jewish philosophy rests on the Arizal's word.
The Arizal was most famous for his teachings in Safed (though he only lived there for two years). At the same time there lived the Mabit, the Beis Yosef, the Alshich and the Radvaz.
Did they comment on the Arizal and/or his teachings?