Musannaf Ibn Abi Shaybah

Hazrat Abu Huraira (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: Whoever comes to this mosque of mine... Imam Abu Bakr (may Allah have mercy on him) says this means the mosque of Madinah Munawwarah... and he comes only to teach something good or to learn it, then that person is in the rank of one who strives in the path of Allah. And whoever comes for any other purpose, then he is in the rank of one who looks at someone else's belongings.

Hazrat Maymunah (may Allah be pleased with her), the Mother of the Believers, narrates that I heard the Messenger of Allah (peace and blessings be upon him) say: Offering one prayer in this mosque of mine — that is, in the Prophet’s Mosque ﷺ — is better than a thousand prayers in any other mosque, except for the mosque of Makkah. Imam Abu Bakr (may Allah have mercy on him) says: The people of Egypt have also narrated this hadith, but in their chain of narration, the mention of Ibn Abbas (may Allah be pleased with them both) is not included.

Hazrat Ubayy bin Ka'b (may Allah be pleased with him) narrates that the Noble Prophet (peace and blessings be upon him) said: The mosque which was founded on piety is my mosque.