Five prayers expiate the sins in between

 203 Abu Hurairah narrated that the Messenger of Allah salla alayhi wa sallam said: ´´Five prayers and from one Friday prayer to (the next) Friday prayer expiate the sins committed between them as long as major sins are avoided.´´

And in other narration: ´´The fasting during one Ramadan to the next Ramadan expiate the sins between their intervals, provided major sins are avoided.´´