ask for (someone's) hand in marriage

Translations
просить (чьей-то) руки в браке
He decided to ask for her hand in marriage during their vacation.
Он решил попросить её руки в браке во время их отпуска.
Definitions
To formally request permission to marry someone, often by asking the person directly or by seeking approval from their family, traditionally the person's parents.
Words
hand

noun
рука
marriage

noun
брак
ask

verb
спрашивать
hand in

verb
сдать
ask for

verb
просить