Jami` at-Tirmidhi 1593
جامع الترمذي#1593SahihNarrated Ibn 'Umar: "We used to pledge to the Messenger of Allah (ﷺ) to hear and obey." So he would say to us: "As much as you are able." [Abu 'Eisa said:] This Hadith is Hasan Sahih
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Ahmad Muhammad ShakirSahih
Al-AlbaniSahih
Bashar Awad MaaroufHasan Sahih
Zubair Ali ZaiSahih Muslim
In-book reference: 21:55