Shloka 40
Viśvāmitra-janma: Ṛcīka–Satyavatī–Gādhi and the Charu Exchange (विश्वामित्र-जन्म: ऋचीक–सत्यवती–गाधि वृत्तान्तः)
व्यत्यासस्तु कृतो यस्मात् त्वया मात्रा च ते शुभे । तस्मात् सा ब्राह्मण श्रेष्ठ माता ते जनयिष्यति
vyatyāsas tu kṛto yasmāt tvayā mātrā ca te śubhe | tasmāt sā brāhmaṇaśreṣṭhā mātā te janayiṣyati ||
毗湿摩说：“既然你与母亲做了互换，吉祥的女子啊，因此你的母亲将诞下一位卓越的婆罗门。”
भीष्म उवाच
Educational Q&A
Actions motivated by attachment can still carry binding consequences; an intentional ‘exchange’ (vyatyāsa) alters outcomes, and Bhīṣma frames the result as a moral-causal inevitability.
Bhīṣma explains that because the addressed woman and her mother have performed an exchange, the mother will consequently give birth to an excellent Brāhmaṇa—stating the outcome as the direct result of their act.