Mahabharata 3.83.99

अतश्चाष्टगुणं पार्थ प्राप्स्यसे धर्ममुत्तमम्नेता च त्वमृषीन्यस्मात्तेन तेऽष्टगुणं फलम्

ataścāṣṭaguṇaṃ pārtha prāpsyase dharmamuttamamnetā ca tvamṛṣīnyasmāttena te'ṣṭaguṇaṃ phalam

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