Bhagavad Gita 4.2

एवं परम्पराप्राप्तमिमं राजर्षयो विदुः।स कालेनेह महता योगो नष्टः परन्तप ॥४.२॥

evaṃ paramparāprāptamimaṃ rājarṣayo viduḥsa kāleneha mahatā yogo naṣṭaḥ parantapa

This, handed down in regular succession by the royal sages, was known. This Yoga, however, has been lost here over time, O Parantapa (burner of the foes).

गीता