Name #279 of 1000 · Viṣṇu Sahasranāma

स्पष्टाक्षरःspaṣṭākṣaraḥ

Spashtakshara

The clear syllable — OM

From shloka 30 · chapter Varāha

ओजस्तेजोद्युतिधरः प्रकाशात्मा प्रतापनः
ऋद्धः स्पष्टाक्षरो मन्त्रश्चन्द्रांशुर्भास्करद्युतिः
ojastejodyutidharaḥ prakāśātmā pratāpanaḥ
ṛddhaḥ spaṣṭākṣaro mantraścandrāṃśurbhāskaradyutiḥ
verse 30

Also in this shloka: ojastejodyutidharaḥ · prakāśātmā · pratāpanaḥ · ṛddhaḥ · mantraḥ · candrāṃśuḥ · bhāskaradyutiḥ