背に腹は替えられぬ
せにはらはかえられぬ Idiom- 1you can't make an omelet without breaking eggs ; a small sacrifice may be necessary to solve a more pressing problem Translated by Jiyomi
Other writings and readings
背に腹はかえられぬ背に腹は代えられぬ背に腹は変えられぬ
expressions (phrases, clauses, etc.)
JMdict entry 2216540. Source and licence.