儿不嫌母丑，狗不嫌家贫
ér​bù​xián​mǔ​chǒu​gǒu​bù​xián​jiā​pín

loyalty to one's roots

儿不嫌母丑，狗不嫌家贫 兒不嫌母醜，狗不嫌家貧 ér​bù​xián​mǔ​chǒu​gǒu​bù​xián​jiā​pín
loyalty to one's roots
a son won't abandon his mother for being ugly, just as a dog won't abandon its owner for being poor; a proverb used to express that one should remain loyal to one's parents and home regardless of their condition