Bhagavatapurana 6.4.30

6.4.30

yasmin yato yena ca yasya yasmai yadyo yathā kurute kāryate ca /
parāvareṣāṃ paramaṃ prāk prasiddhaṃ tadbrahma taddheturananyadekam //

29. *Last foot.* D. The only true definition is that the Lord is one in whom there is no touch of the three guṇas. 30. That is the Perfect Being (Brahman) which exists before everything else as the cause of all, the first cause of all other causes, without a second unlike or like itself, on whom everything depends, from whom everything originates, with whom everybody works, to whom everything is related, towards whom everything tends, who is the absolute Agent and who is made everything and in any manner.