Abu Hurairah Radiyallahu 'anhu narrates that Nabi Sallallahu 'alaihi wasallam said: A Muslim that makes the masjid his abode for Salat and Dhikr, Allah is overjoyed with him as a family is overjoyed by the return of an absent relative. (Ibne Majah: 800)
Note: Making his abode means that he develops a special attachment to
the masjid, and remains there for a major part of his time.