Mahabharata 12.336.57

एष एकान्तिधर्मस्ते कीर्तितो नृपसत्तममया गुरुप्रसादेन दुर्विज्ञेयोऽकृतात्मभिःएकान्तिनो हि पुरुषा दुर्लभा बहवो नृप

eṣa ekāntidharmaste kīrtito nṛpasattamamayā guruprasādena durvijñeyo'kṛtātmabhiḥekāntino hi puruṣā durlabhā bahavo nṛpa

Our plain-language meaning of this verse is waiting for scholar review.