question #1 Sahih Muslim 233c, Book 2, Hadith 19 : How do the daily prayers contribute to the expiation of sins in Islam?

Verily the Messenger of Allah (ﷺ) said: The five (daily) prayers and from one Friday prayer to the (next) Friday prayer, and from Ramadhan to Ramadhan are expiations for the (sins) committed in between (their intervals) provided one shuns the major sins.