Sahih Bukhari
Judgments (Ahkaam)
Volume: 009 / Book Number: 089 / Hadith Number: 312
Narrated 'Abdullah bin Dinar:
When the people took the oath of allegiance to 'Abdul Malik, 'Abdullah bin 'Umar wrote to him: "To Allah's Slave, 'Abdul Malik, Chief of the believers, I give the Pledge of allegiance that I will listen to and obey Allah's Slave, 'Abdul Malik, Chief of the believers, according to Allah's Laws and the Traditions of His Apostle in whatever is within my ability; and my sons too, give the same pledge."