Sahih Muslim · Hadith 4972
The Book on Government - كتاب الإمارة
وحدثنا ابن أبي عمر، حدثنا سفيان، عن أبي الزناد، عن الأعرج، عن أبي هريرة، قال سمعت رسول الله صلى الله عليه وسلم يقول " لولا أن أشق على المؤمنين ما قعدت خلاف سرية " . بمثل حديثهم . وبهذا الإسناد " والذي نفسي بيده لوددت أني أقتل في سبيل الله ثم أحيى " . بمثل حديث أبي زرعة عن أبي هريرة .
It has been narrated on the authority of Abu Huraira who said: I heard the Messenger of Allah (may peace be upon him) say: I would not stay behind (when) an expedition (for Jihad was being mobilised) if it were going to be too hard upon the believers.... This is followed by the same words as have appeared in the previous tradition, but this tradition has the same ending as the previous hadith with a slight difference in the wording:" By the Being in Whose Hand is my life, I love that I should be killed in the way of Allah; then I should be brought back to life and be killed again in His way...."
Gradings are classical jarḥ-wa-taʿdīl, name-matched to a rijāl index (not individually re-verified).