BṚHADĀRAṆYAKA UPANISHAD · 1.3.7
अथ हेमम् आसन्यं प्राणम् ऊचुस् त्वं न उद्गायेति ।
तथेति तेभ्य एष प्राण उदगायत् ।
ते ऽविदुर् अनेन वै न उद्गात्रात्येष्यन्तीति ।
तम् अभिद्रुत्य पाप्मनाविव्यत्सन् ।
स यथाश्मानम् ऋत्वा लोष्टो विध्वंसेतैवं हैव विध्वंसमाना विष्वञ्चो विनेशुः ।
ततो देवा अभवन्, परासुरा ।
भवत्य् आत्मना, परास्य द्विषन् भ्रातृव्यो भवति य एवं वेद ॥
atha hemam āsanyaṃ prāṇam ūcus tvaṃ na udgāyeti ।
tatheti tebhya eṣa prāṇa udagāyat ।
te ’vidur anena vai na udgātrātyeṣyantīti ।
tam abhidrutya pāpmanāvivyatsan ।
sa yathāśmānam ṛtvā loṣṭo vidhvaṃsetaivaṃ haiva vidhvaṃsamānā viṣvañco vineśuḥ ।
tato devā abhavan, parāsurā ।
bhavaty ātmanā, parāsya dviṣan bhrātṛvyo bhavati ya evaṃ veda ॥
Then they said to the breath in the mouth: 'Do thou sing for us.' 'Yes,' said the breath, and sang. The Asuras knew: 'Verily, through this singer they will overcome us.' They therefore rushed at him and pierced him with evil. Now as a ball of earth will be scattered when hitting a stone, thus they perished, scattered in all directions. Hence the Devas rose, the Asuras fell. He who knows this, rises by his self, and the enemy who hates him falls.
F. Max Müller · The Upanishads, Sacred Books of the East 15 (1884)