Srimad-Bhagavatam: Canto 10 - Chapter 1 - Verse 24
Sanskrit:
आत्मा ह्येक: स्वयंज्योतिर्नित्योऽन्यो निर्गुणो गुणै: ।आत्मसृष्टैस्तत्कृतेषु भूतेषु बहुधेयते ॥ २४ ॥
ITRANS:
ātmā hy ekaḥ svayaṁ-jyotirnityo ’nyo nirguṇo guṇaiḥātma-sṛṣṭais tat-kṛteṣubhūteṣu bahudheyate
Translation:
The supreme spirit, Paramātmā, is indeed one. He is self-luminous and eternal, transcendental and devoid of material qualities. But through the agency of the very modes He has created, the one Supreme Truth manifests as many among the expansions of those modes.