Mahabharata 5.176.5

अम्बोवाचअपनीतास्मि भीष्मेण भगवन्नविजानतान हि जानाति मे भीष्मो ब्रह्मञ्शाल्वगतं मनः

ambovācaapanītāsmi bhīṣmeṇa bhagavannavijānatāna hi jānāti me bhīṣmo brahmañśālvagataṃ manaḥ

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