Mahabharata 3.280.23

मार्कण्डेय उवाच · mārkaṇḍeya uvāca

साभिगम्याब्रवीच्छ्वश्रूं श्वशुरं च महाव्रताअयं गच्छति मे भर्ता फलाहारो महावनम्

sābhigamyābravīcchvaśrūṃ śvaśuraṃ ca mahāvratāayaṃ gacchati me bhartā phalāhāro mahāvanam

Our plain-language meaning of this verse is waiting for scholar review.