question #1 Sahih al-Bukhari 728, Book 10, Hadith 122 : What is the significance of standing on the right side during prayer in Islam?

One night I stood to the left of the Prophet (ﷺ) in the prayer but he caught hold of me by the hand or by
the shoulder (arm) till he made me stand on his right and beckoned with his hand (for me) to go from
behind (him). (Al-Kashmaihani [??] , Fath-ul-Bari).