Bhagavad Gita 14.4

सर्वयोनिषु कौन्तेय मोहनय: सम्भावनान्ति या: |
तासां ब्रह्म महद्योनिर्हं बीजप्रद: पिता

Translation

O son of Kunti, for all species of life that are produced, the material nature is the womb, and I am the seed-giving Father.