(35) باب غَزْوَةِ الْحُدَيْبِيَةِ
Narrated Yazid bin Abi Ubaid:
I said to Salama bin Al-Akwa`, "For what did you give the Pledge of allegiance to Allah's Messenger (ﷺ) on the day of Al-Hudaibiya?" He replied, "For death (in the Cause of Islam.).
Reference: Sahih al-Bukhari 4169
In-book reference: Book 64, Hadith 211
USC-MSA web (English) reference(deprecated numbering scheme): Vol. 5, Book 59, Hadith 487