"The Messenger of Allah (ﷺ) said: 'The covenant that stands between us and them is the Salah; whoever abandons it, he has committed disbelief.'"
Sunan an-Nasa'i Book 5, Hadith 16
← Previous Hadith "Do you think that is there was a river by the door of any one of you, and he bathed in it five times each day, would there be any trace of dirt left on him?" They said: "No trace of dirt would be left on him." He said: "That is the likeness of the five daily prayers. By means of them Allah erases sins."

Sunan an-Nasa'i Book 5, Hadith 15 Next Hadith → "The Messenger of Allah (ﷺ) said: 'There is nothing between a person and disbelief except abandoning Salah.'"

Sunan an-Nasa'i Book 5, Hadith 17