The Compendium of Caraka 4.3.4

4.3.4

neti bharadvājaḥ, kiṃ kāraṇaṃ---na hi mātā na pitā nātmā na sātmyaṃ na pānāśanabhakṣyalehyopayogā garbhaṃ janayanti, na ca paralokādetya garbhaṃ sattvamavakrāmati//

"Not so," said Bharadvāja. "What is the reason?—Neither mother, nor father, nor self, nor wholesomeness, nor the consumption of drinks, solid foods, eatables, and linctuses generates the embryo; nor does a mind descend into the embryo having come from the other world.