Keeping to the mosques

Sayyiduna Abu Hurayrah (may Allah be pleased with him) reports this saying of the Prophet (peace and blessings be upon him): "The mosque has its pegs (that is, people who always remain in the mosque). The angels sit with these people; if they are absent, the angels ask about their absence; if they fall ill, the angels visit them; and if they are occupied with some need, the angels help them." Then the Prophet (peace and blessings be upon him) said: "The one who sits in the mosque is in one of three situations (that is, he is certain to attain one of these three things): a brother from whom benefit is gained, a word that is sound and firm, or a mercy that is awaited."
Ahmad recorded it; its chain contains a narrator, Ibn Lahi'ah, about whom there is criticism.

Sayyiduna Abu al-Darda' (may Allah be pleased with him) says: I heard the Prophet (peace and blessings be upon him) say: "The mosque is the home of every God-fearing person, and Allah Almighty has guaranteed for the one whose home is the mosque comfort, mercy, and passage over the Sirat to the pleasure of Allah Almighty and to Paradise."
Al-Tabarani recorded it in al-Mu'jam al-Kabir and al-Mu'jam al-Awsat, and al-Bazzar recorded it; he said: Its chain is hasan (good). I say: All the narrators of al-Bazzar are the narrators of the Sahih.

Abu Uthman (may Allah be pleased with him) says: Sayyiduna Salman al-Farisi (may Allah be pleased with him) wrote to Sayyiduna Abu al-Darda' (may Allah be pleased with him): "O my brother! Let the mosque be your home, for I heard the Prophet (peace and blessings be upon him) say: 'The mosque is the home of every God-fearing person, and for those whose homes are the mosques, Allah Almighty has guaranteed comfort (rawh), mercy, and passage over the Sirat.'"
Al-Tabarani recorded it in al-Mu'jam al-Kabir; its chain contains a narrator, Salih al-Murri, who is da'if (weak).

Sayyiduna Abdullah bin Mas'ud (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "Indeed, the houses of Allah on earth are the mosques, and it is binding upon Allah Almighty to honour the one who visits."
Al-Tabarani recorded it in al-Mu'jam al-Kabir; its chain contains a narrator, Abdullah bin Ya'qub al-Kirmani, who is da'if (weak). I say: The hadith of Sayyiduna Salman (may Allah be pleased with him) about walking to the mosques will come later.

Sayyiduna Imam al-Hasan bin Ali (may Allah be pleased with him) says: I heard my grandfather, the Messenger of Allah (peace and blessings be upon him), say: "Whoever regularly goes back and forth to the mosques gains a brother (who loves him) for the sake of Allah Almighty, or knowledge that is rare and fresh, or a word that guides him to right guidance, or a word that turns him away from ruin, and such a person abandons sins out of modesty and fear (of Allah), or he gains a blessing, or a mercy that is awaited."
Al-Tabarani recorded it in al-Mu'jam al-Kabir; its chain contains a narrator, Sa'd bin Tarif al-Iskaf, on whose weakness there is agreement.

Sayyiduna Anas bin Malik (may Allah be pleased with him) says: I heard the Prophet (peace and blessings be upon him) say: "Those who keep the houses of Allah populated are indeed the people of Allah."
Al-Tabarani recorded it in al-Mu'jam al-Awsat, and Abu Ya'la and al-Bazzar recorded it; its chain contains a narrator, Salih al-Murri, who is da'if (weak).

Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him) narrates that the Prophet (peace and blessings be upon him) said: "Whoever is attached to the mosque, Allah Almighty is attached to him."
Al-Tabarani recorded it in al-Mu'jam al-Awsat; its chain contains a narrator, Ibn Lahi'ah, about whom there is criticism.

Sayyiduna Jabir (may Allah be pleased with him) says: Before the Prophet (peace and blessings be upon him) came to us, we stayed in Madinah for two years in such a state that we established the prayer and kept the mosques populated.
Al-Tabarani recorded it in al-Mu'jam al-Awsat; its chain contains a narrator, Muhammad bin Abi Layla, about whom there is criticism.

Sayyiduna Mu'adh bin Jabal (may Allah be pleased with him) reports this saying of the Prophet (peace and blessings be upon him): "Satan is a wolf to man, just as the wolf is a danger to the sheep; it seizes the sheep that strays far off and keeps apart. So beware of going into the mountain passes (or of splitting into different factions)! Hold fast to the congregation, to the general body of people, and to the mosque."
Ahmad recorded it; the narrator al-Ala' bin Ziyad did not hear from Sayyiduna Mu'adh (may Allah be pleased with him).

Sayyiduna Abdullah bin Amr (may Allah be pleased with him) reports this saying of the Prophet (peace and blessings be upon him): "There are six kinds of gatherings in which the believer has a guarantee from Allah Almighty, whichever of these gatherings he is in: a congregational mosque, beside a sick person, or at a funeral, or in his own house, or with a just ruler whom that believer honours and respects."
Al-Tabarani recorded it in al-Mu'jam al-Kabir, and al-Bazzar recorded something similar; its narrators have been deemed trustworthy (muwaththaq).