Sahih Al Bukhari – Book of Wedlock, Marriage (Nikaah)
Volumn 007, Book 062, Hadith Number 128.
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Narated By Ibn 'Umar : The Prophet said, "All of you are guardians and are responsible for your wards. The ruler is a guardian and the man is a guardian of his family; the lady is a guardian and is responsible for her husband's house and his offspring; and so all of you are guardians and are responsible for your wards."
Junaid Tahir