मज्झिम निकाय 1:108
SUJATOYopi so, bhikkhave, bhikkhu sekkho appattamānaso anuttaraṁ yogakkhemaṁ patthayamāno viharati, sopi pathaviṁ pathavito abhijānāti;
A mendicant who is a trainee, who hasn’t achieved their heart’s desire, but lives aspiring to the supreme sanctuary from the yoke, directly knows earth as earth.