BG 14.3
मम योनिर्महद्ब्रह्म तस्मिन् गर्भं दधाम्यहम्।संभवः सर्वभूतानां ततो भवति भारत
mama yonir mahad brahma tasmin garbhaṁ dadhāmy aham sambhavaḥ sarva-bhūtānāṁ tato bhavati bhārata
The eternal cosmos is My womb, in which I plant the seed from which all beings are born, O prince!
Translated by Shri Purohit Swami
My womb is the great Brahma; in it I place the germ; thence, O Arjuna, is the birth of all beings.
Translated by Swami Sivananda
Word meanings (from the gita/gita dataset)
mama—my; yoniḥ—womb; mahat brahma—the total material substance, prakṛiti; tasmin—in that; garbham—womb; dadhāmi—impregnate; aham—I; sambhavaḥ—birth; sarva-bhūtānām—of all living beings; tataḥ—thereby; bhavati—becomes; bhārata—Arjun, the son of Bharat;