expression
a samurai never goes back on his word
Proverb emphasizing that a true warrior keeps promises and does not break them. Often used to praise or remind someone of honorable conduct.
武士に二言なしと言うから、約束は必ず守る。
As they say, a samurai never goes back on his word, so I will definitely keep my promise.
A fixed proverb from the Edo period or earlier, reflecting the samurai code of honor. The exact origin is uncertain.