GarbhOp, 1, 4.4 pañcātmakaḥ samarthaḥ pañcātmikā cetasā buddhir gandharasādijñānākṣarākṣaram oṃkāraṃ cintayatīti tad ekākṣaraṃ jñātvāṣṭau prakṛtayaḥ ṣoḍaśa vikārāḥ śarīre tasyaiva dehinaḥ /

MBh, 1, 1, 21.3 ṛtam ekākṣaraṃ brahma vyaktāvyaktaṃ sanātanam //

MBh, 12, 211, 13.1 yat tad ekākṣaraṃ brahma nānārūpaṃ pradṛśyate /

MBh, 14, 26, 8.2 om ityekākṣaraṃ brahma te śrutvā prādravan diśaḥ //

ManuS, 2, 83.1 ekākṣaraṃ paraṃ brahma prāṇāyāmaḥ paraṃ tapaḥ /

KūPur, 1, 19, 45.1 ārādhayiṣye tapasā devamekākṣarāhvayam /

LiPur, 1, 91, 50.2 omityekākṣaraṃ hyetadguhāyāṃ nihitaṃ padam //

ViPur, 3, 3, 22.1 dhruvam ekākṣaraṃ brahma omityevaṃ vyavasthitam /

ViSmṛ, 55, 17.1 ekākṣaraṃ paraṃ brahma prāṇāyāmāḥ paraṃ tapaḥ /

BhāMañj, 6, 113.2 omityekākṣaraṃ brahma japanto yānti te param //

MBhT, 10, 20.1 sa pūtaḥ sarvapāpebhyo yadi caikākṣaraṃ śrutam /

SkPur (Rkh), Revākhaṇḍa, 13, 34.1 japtvā caikākṣaraṃ brahma hṛdi dhyātvā maheśvaram /