The Book of Miscellany
Riyad as-Salihin #1880
كتاب المقدمات
وعنه قال: كنا إذا بايعنا رسول الله صلى الله عليه وسلم على السمع والطاعة يقول لنا: “فيما استطعتم” ((متفق عليه))
Ibn 'Umar (May Allah be pleased with them) reported:
Whenever we took a pledge of allegiance to Messenger of Allah (ﷺ) to hear and obey, he (ﷺ) would say to us, “As far as you are capable of.”.
وعنه قال: كنا إذا بايعنا رسول الله صلى الله عليه وسلم على السمع والطاعة يقول لنا: “فيما استطعتم” ((متفق عليه))
Whenever we took a pledge of allegiance to Messenger of Allah (ﷺ) to hear and obey, he (ﷺ) would say to us, "As far as you are capable of.".
— Riyad as-Salihin, Hadith 1880