Mahabharata 13.41.33

विपुलस्य गुरौ वृत्तिं भक्तिमात्मनि च प्रभुःधर्मे च स्थिरतां दृष्ट्वा साधु साध्वित्युवाच ह

vipulasya gurau vṛttiṃ bhaktimātmani ca prabhuḥdharme ca sthiratāṃ dṛṣṭvā sādhu sādhvityuvāca ha

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