It has been narrated on the authority of Abdullah b. 'Umar who said: We used to take oath to the Messenger of Allah (ﷺ) that we would listen to and obey his orders. He would tell us (to say in the oath): As far as it lies in my power.

لا تلتقي أسانيد هذه الأحاديث عند راوٍ واحد، وهي على ٦ رواة في أعلاها.