(24) باب الْبَيْعَةِ فِيمَا يَسْتَطِيعُ الإِنْسَانُ
It was narrated that Jarir bin 'Abdullah said:
"I gave my pledge to the Prophet to hear and obey, and he told me to add the words.' In as much as you can, and to be since toward every Muslim"'. (Sahih) '
Reference: Sunan an-Nasa'i 4189
In-book reference: Book 39, Hadith 41
English translation: Vol. 5, Book 39, Hadith 4194