Mahabharata 12.272.27

भीष्म उवाच · bhīṣma uvāca

एवं संबोध्यमानस्य वसिष्ठेन महात्मनाअतीव वासवस्यासीद्बलमुत्तमतेजसः

evaṃ saṃbodhyamānasya vasiṣṭhena mahātmanāatīva vāsavasyāsīdbalamuttamatejasaḥ

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