Hadith #493 (Sahih al-Bukhari)
Book: Prayers (Salat)
Narrator(s): Yazid bin 'Abdul 'Aziz bin Siyah يزيد بن عبد العزيز بن سياه
Grade: Sahih

I used to accompany Salama bin Al-Akwa` and he used to pray behind the pillar which was near the place where the Qur’ans were kept. I said, “O Abu Muslim! I see you always seeking to pray behind this pillar.” He replied, “I saw Allah’s Messenger (ﷺ) always seeking to pray near that pillar.”

Source: https://parallelquran.com/hadith/sahih-al-bukhari-493/

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Hadith #2840 (Sahih al-Bukhari)
Book: Fighting for the Cause of Allah (Jihaad)
Narrator(s): Yazid bin 'Abdul 'Aziz bin Siyah يزيد بن عبد العزيز بن سياه
Grade: Sahih

Salama said, “I gave the Pledge of allegiance (Al-Ridwan) to Allah’s Messenger (ﷺ) and then I moved to the shade of a tree. When the number of people around the Prophet (ﷺ) diminished, he said, ‘O Ibn Al-Akwa` ! Will you not give to me the pledge of Allegiance?’ I replied, ‘O Allah’s Messenger (ﷺ)! I have already given to you the pledge of Allegiance.’ He said, ‘Do it again.’ So I gave the pledge of allegiance for the second time.” I asked ‘O Abu Muslim! For what did you give he pledge of Allegiance on that day?” He replied, “We gave the pledge of Allegiance for death.”

Source: https://parallelquran.com/hadith/sahih-al-bukhari-2840/