Sahih Bukhari
Sahih Bukhari Volume 009, Book 092, Hadith Number 377.
Hadith Section/Book: Sahih Bukhari Sahih Bukhari Book 92. Holding Fast to the Qur'an and Sunnah
Narrated By Abdullah bin Dinar : 'Abdullah Bin 'Umar wrote to 'Abdul Malik bin Marwan, swearing allegiance to him: 'I swear allegiance to you in that I will listen and obey what is in accordance with the Laws of Allah and the Tradition of His Apostle as much as I can.'