MUHAQQIQ-MUHAQQIQÎN - محقق
Literally: Who investigates, scrutinizes closely. The One who investigates and finds haqiqah. Who is engaged in seeking the ultimate haqq. Having the knowledge of inner faces of things by the way of research. The ‘âlim of haqiqah. The great ‘âlim and awliyâ of Islam, who investigate the haqiqahs and hold them perfectly.
Muhaqqiqîn is the plural of Muhaqqiq.