ŚāṅkhĀ, 1, 6, 12.0 taṃ hendra uvācaitad vā aham asmi yad etad avocaṃ yad vā ṛṣe 'to bhūyo 'tapās tadeva tat syād yad aham iti //

MBh, 12, 17, 23.2 nābuddhayo nātapasaḥ sarvaṃ buddhau pratiṣṭhitam //

MBh, 12, 292, 47.2 atapāstapa ātmānam agatir gatim ātmanaḥ //

MBh, 12, 306, 28.2 jñānaṃ jñeyaṃ tathājño jñaḥ kastapā atapāstathā /

MBh, 12, 306, 40.1 kastapā atapāḥ proktaḥ ko 'sau puruṣa ucyate /

MBh, 12, 306, 40.2 tapāḥ prakṛtir ityāhur atapā niṣkalaḥ smṛtaḥ //

ManuS, 4, 190.1 atapās tv anadhīyānaḥ pratigraharucir dvijaḥ /

MPur, 148, 4.1 kiṃtu nātapasā yukto manye'haṃ surasaṃgamam /