SB 10.85.24
atma hy ekah svayam-jyotir
nityo ’nyo nirguno gunaih
atma-srstais tat-krtesu
bhutesu bahudheyate
Translation:
The supreme spirit, Paramatma, 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.