I saw the most famous people amongst the companions of the Prophet (ﷺ) hurrying towards the pillars at the Maghrib prayer before the Prophet (ﷺ) came for the prayer.
Sahih al-Bukhari Book 8, Hadith 150
← Previous Hadith 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."

Sahih al-Bukhari Book 8, Hadith 149 Next Hadith → The Prophet (ﷺ) entered the Ka`ba along with Usama bin Zaid, `Uthman bin Talha and Bilal and remained there for a long time. When they came out, I was the first man to enter the Ka`ba. I asked Bilal "Where did the Prophet (ﷺ) pray?" Bilal replied, "Between the two front Pillars."

Sahih al-Bukhari Book 8, Hadith 151