The external energy consists of two parts - the efficient cause (nimitta) and the material cause (upadana), maya being the efficient cause and pradhana the material cause

Expressions researched:
"and the material cause" |"maya being the efficient cause and pradhana the material cause" |"the efficient cause" |"the external energy consists of two parts"

CC Adi-lila

Just as the external energy consists of two parts—the efficient cause (nimitta) and the material cause (upādāna), māyā being the efficient cause and pradhāna the material cause—so Lord Viṣṇu, the Supreme Personality of Godhead, assumes two forms to create the material world with the efficient and material causes.

CC Adi 6.14-15, Translation:

Just as the external energy consists of two parts—the efficient cause (nimitta) and the material cause (upādāna), māyā being the efficient cause and pradhāna the material cause—so Lord Viṣṇu, the Supreme Personality of Godhead, assumes two forms to create the material world with the efficient and material causes.