With accent marks:
Друзья́ познаю́тся в беде́.
You see your friends in the times of trouble.
This proverb is about a true friendship. It often happens in life that people have many friends who only call themselves friends. But should a disaster happen, only a few of them are ready to help.
The closest English equivalent is: "A friend in need is a friend indeed".
Other Russian proverbs
A fisherman sees a fisherman from afar.
Don’t wave your fists after the fight.
With whom you are friends with, from them you will learn.
Fear has big eyes.
Patience and labor will grind everything.
Water does not flow under a lying stone.
Trust but verify.
In a quiet whirlpool, demons live.