The five (daily) prayers and one Friday prayer to (the next) Friday prayer are expiations (for the sins committed in the intervals) between them.
Sahih Muslim Book 2, Hadith 18
← Previous Hadith The Messenger of Allah (ﷺ) said: Five prayers and from one Friday prayer to (the next) Friday prayer is an expiation (of the sins committed in between their intervals) if major sins are not committed.

Sahih Muslim Book 2, Hadith 17 Next Hadith → 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.

Sahih Muslim Book 2, Hadith 19