Whoever goes to the mosque in the morning or the evening, Allah has prepared an abode for him in Paradise every time he goes in the morning or the evening

The Prophet (may Allah's peace and blessings be upon him) gave glad tidings to whoever came to the mosque for worship or seeking knowledge or for any other good purpose at any time, be it in the early morning or at the end of the day, that Allah has prepared for him a place and an accommodation in Paradise whenever he goes to the mosque at night or in the morning.

1. The merit of going to the mosque and encouraging Muslims to observe the congregational prayer therein. One who does not go to mosques misses a great deal of goodness, favor, reward, and the accommodation that Allah Almighty prepares for those who come to His house.
2. People treat those who visit them in their houses generously and serve them food, and Allah Almighty is, indeed, more generous than His creation. Hence, whoever comes to His house, He treats him with bounty and prepares for him a great and huge abode.
3. One should feel happy and joyful about going to mosques because an abode is prepared for him every time he goes there in the morning or the evening according to the number of times he goes there.

صحيح البخاري (1/ 133) (662). صحيح مسلم (1/ 463) (669). نزهة المتقين شرح رياض الصالحين، لمجموعة من الباحثين (1/ 153). شرح رياض الصالحين، لابن عثيمين (2/ 166). بهجة الناظرين شرح رياض الصالحين، لسليم الهلالي (1/ 204).