穷家富路（窮家富路）　

◎ 穷家富路 qióngjiā-fùlù

[practice thrift at home but be amply provided while traveling] 谓居家应节俭,出门则要多带盘缠,免遭困窘

银子虽多,贤弟只管拿去。俗语说得好:“穷家富路”。——清· 石玉昆《三侠五义》