儿不嫌母丑，狗不嫌家贫

ér bù xián mǔ chǒu , gǒu bù xián jiā pínerbuxianmuchou,goubuxianjiapin

1. a son won't abandon his mother for being ugly, just as a dog won't abandon its owner for being poor (proverb)

Study it in Yanamino