Silsilat al-Ahadith al-Sahihah

It is narrated from Sayyiduna Anas (may Allah be pleased with him), he says that the Messenger of Allah (peace and blessings be upon him) said: "Allah Almighty will announce on the Day of Resurrection: Where are My neighbors? Where are My neighbors? The angels will ask: O our Lord! Who is worthy to come near Your neighborhood? Allah Almighty will say: Where are those who used to populate the mosques?"