Majjhima Nikaya (Coleção dos Discursos Médios) 3:110
SUJATOSo tathāsato viharanto taṁ dhammaṁ paññāya pavicinati pavicayati parivīmaṁsaṁ āpajjati.
As they live mindfully in this way they investigate, explore, and inquire into that principle with wisdom.