柳の下にいつも泥鰌はおらぬ

やなぎのしたにいつもどじょうはおらぬyanaginoshitaniitsumodojouhaoranu

expression

1. a fox is not taken twice in the same snare
2. there are no birds in last year's nest
3. there aren't always loaches under the willow tree

Study it in Yanamino