Bhagavad Gita 14.3

मम योनिर्महद् ब्रह्म तस्मिन्गर्भं दधाम्यहम् |
संभाव्य: सर्वभूतानां ततो भवति भारत

Translation

The total material substance, prakṛiti, is the womb. I impregnate it with the individual souls, and thus all living beings are born.