七度尋ねて人を疑え
ななたびたずねてひとをうたがえ、しちどたずねてひとをうたがえ
nanatabitazunetehitowoutagae
JMdict entry #2803180
- expressions (phrases, clauses, etc.) proverb search thoroughly for something lost before you suspect someone of stealing it; be on sure ground before you accuse someone