English Translation
Narrated Yazid bin Abi Ubaid: I said to Salama bin Al-Akwa, "For what did you give the Pledge of allegiance to Allah's Apostle on the day of AlHudaibiya?" He replied, "For death (in the Cause of Islam.)."
This hadith is from Sahih al-Bukhari, the most rigorously authenticated collection in Islamic scholarship. No editorial opinion is added.