AITAREYA UPANISHAD · 2.1.2
तत् स्त्रिया आत्मभूयं गच्छति यथा स्वमङ्गं तथा । तस्मादेनां न हिनस्ति । सास्यैतमात्मानमत्र गतं भावयति ॥ २ ॥
tat striyā ātmabhūyaṃ gacchati yathā svamaṅgaṃ tathā । tasmādenāṃ na hinasti । sāsyaitamātmānamatra gataṃ bhāvayati ॥ 2 ॥
It becometh one self with the woman, therefore it doeth her no hurt and she cherisheth this self of her husband that hath got into her womb.
Sri Aurobindo · CWSA 18, p. 203