Sunan an-Nasa'i

It was narrated that 'Abdullah bin Mughaffal said: "The Messenger of Allah (S.A.W) said: “Between each two Adhans [1] there is a prayer, between each two Adhans there is a prayer, between each two Adhans there is a prayer, for whoever wants to do it." [1]Meaning, between the Adhan and Iqamah”