GB, 1, 1, 9, 7.0 śreṣṭho ha vedas tapaso 'dhi jāto brahmajyānāṃ kṣitaye saṃbabhūva //

GB, 1, 1, 22, 1.0 saiṣaikākṣararg brahmaṇas tapaso 'gre prādurbabhūva brahmavedasyātharvaṇaṃ śukram //

GB, 1, 1, 22, 3.0 sa tu khalu mantrāṇām atapasāśuśrūṣānadhyāyādhyayanena yad ūnaṃ ca viriṣṭaṃ ca yātayāmaṃ ca karoti tad atharvaṇāṃ tejasā pratyāpyāyayet //

GB, 1, 1, 34, 13.0 karmaṇā tapaḥ //

GB, 1, 1, 34, 14.0 tapasā satyam //

GB, 1, 1, 35, 9.0 karmaṇā tapaḥ //

GB, 1, 1, 35, 10.0 tapasā satyam //

GB, 1, 1, 36, 9.0 karmaṇā tapaḥ //

GB, 1, 1, 36, 10.0 tapasā satyam //

GB, 1, 2, 8, 17.0 tasmāt taptāt tapaso bhūya evābhyatapat //

GB, 1, 2, 16, 1.0 prajāpatir atharvā devaḥ sa tapas taptvaitaṃ cātuḥprāśyaṃ brahmaudanaṃ niramimīta caturlokaṃ caturdevaṃ caturvedaṃ caturhautram iti //

GB, 1, 4, 13, 6.0 tathā hāsya satyena tapasā vratena cābhijitam avaruddhaṃ bhavati ya evaṃ veda //

GB, 1, 5, 24, 1.1 śraddhāyāṃ retas tapasā tapasvī vaiśvānaraḥ siṣice 'patyam īpsan /

GB, 2, 2, 3, 26.0 anu me dīkṣāṃ dīkṣāpatir manyatām anu tapas tapaspatir añjasā satyam upa geṣaṃ svite mā dhā ity āha yathāyajur evaitat //

GB, 2, 3, 2, 17.0 brahma tapasīti //