Mahabharata 7.85.98

कारणद्वयमेतद्धि जानानस्त्वाहमब्रुवम्मावमंस्था वचो मह्यं गुरुस्तव गुरोर्ह्यहम्

kāraṇadvayametaddhi jānānastvāhamabruvammāvamaṃsthā vaco mahyaṃ gurustava gurorhyaham

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