ŚBM, 5, 5, 5, 6.2 tam anuparāmṛśya saṃlupyāchinat saiṣeṣṭir abhavat tad yad etasminnāśaye tridhāturivaiṣā vidyāśeta tasmāttraidhātavī nāma //

ṚV, 6, 61, 12.1 triṣadhasthā saptadhātuḥ pañca jātā vardhayantī /

ṚV, 8, 72, 9.1 pari tridhātur adhvaraṃ jūrṇir eti navīyasī /