Mahabharata 12.258.2

भीष्म उवाच · bhīṣma uvāca

अत्राप्युदाहरन्तीममितिहासं पुरातनम्चिरकारेस्तु यत्पूर्वं वृत्तमाङ्गिरसे कुले

atrāpyudāharantīmamitihāsaṃ purātanamcirakārestu yatpūrvaṃ vṛttamāṅgirase kule

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