Mahabharata 5.112.12

सोऽयं तेनाभ्यनुज्ञात उपकारेप्सया द्विजःतमाह भगवान्कां ते ददानि गुरुदक्षिणाम्

so'yaṃ tenābhyanujñāta upakārepsayā dvijaḥtamāha bhagavānkāṃ te dadāni gurudakṣiṇām

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