fruits of a wife's labour; credit due to a supportive wife
A set phrase acknowledging a wife's behind-the-scenes support that contributed to her husband's success, especially through managing the household. Often used in formal or appreciative contexts.
彼の出世は内助の功によるものだ。
His career success is due to his wife's behind-the-scenes support.
社長はスピーチで、内助の功に感謝の言葉を述べた。
In his speech, the company president expressed gratitude for his wife's supportive role.