Sahih Bukhari
Sahih Bukhari Volume 008, Book 078, Hadith Number 667.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 78. Oaths and Vows
Narated By 'Abdullah bin 'Amr : The Prophet said, "The biggest sins are: To join others in worship with Allah; to be undutiful to one's parents; to kill somebody unlawfully; and to take an oath Al-Ghamus.
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