Vedavyasasmriti 91

91

mahāpātakaduṣṭā ca patigarbhavināśinī .
sad‌vṛttacāriṇīṃ patnīṃ tyaktvā patati dharmmataḥ .. 2.47 ..

And [a wife] defiled by a major sin, or one who destroys her husband's fetus [may be abandoned]; / but by abandoning a wife of virtuous conduct, one falls from dharma.