‘Umar reported Allah's Messenger ﷺ as saying

When the mu’adhdhin says, “Allah is most great, Allah is most great,” and one of you makes the response, “Allah is most great, Allah is most great”; then says, “I testify that there is no Allah but Allah,” and he makes the response, “I testify that there is no Allah but Allah”; then says, “I testify that Muhammad is Allah's Messenger ﷺ,” and he makes the response, “I testify that Muhammad is Allah's Messenger ﷺ”; then says, “Come to prayer,” and he makes the response, “There is no might and no power except in Allah”; then says, “Come to salvation,” and he makes the response, “There is no might and no power except in Allah”; then says, “Allah is most great, Allah is most great,” and he makes the response, “Allah is most great, Allah is most great”; then says, “There is no Allah but Allah,” and he makes the response, “There is no Allah but Allah”; if he says this from his heart, he will enter paradise. Muslim transmitted it.