My father who was amongst those who had given the Pledge of allegiance to the Prophet (ﷺ) beneath the Tree, said to me, "We used to offer the Jumua prayer with the Prophet (ﷺ) and then depart at a time when the walls had no shade for us to take shelter in."
Sahih al-Bukhari Book 64, Hadith 210
← Previous Hadith When it was the day (of the battle) of Al-Harra the people were giving Pledge of allegiance to `Abdullah bin Hanzala. Ibn Zaid said, "For what are the people giving Pledge of allegiance to `Abdullah bin Hanzala?" It was said to him, "For death." Ibn Zaid said, "I will never give the Pledge of allegiance for that to anybody else after Allah's Messenger (ﷺ) ." Ibn Zaid was one of those who had witnessed the day of Al-Hudaibiya with the Prophet.

Sahih al-Bukhari Book 64, Hadith 209 Next Hadith → 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.).

Sahih al-Bukhari Book 64, Hadith 211