まさかの とき
masakano toki

Expression

1. in time of need; for a rainy day; in case of emergency

まさかの とき ともこそ しん とも
masakano tokino tomokoso shinno tomo.
A friend in need is a friend indeed.
まさかのときに そなえて貯蓄 ちょちくせよ。
masakano tokini sonaete chochiku seyo.
Keep something for a rainy day.