Sahih al-Bukhari 7205
صحيح البخاري#7205SahihNarrated `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
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Every narration in Sahih al-Bukhari is accepted as Sahih (authentic) by the established status of the book.
In-book reference: 93:65