Surah al-Baqarah

It is narrated from Abd al-Rahman bin Abi Layla that Sayyiduna Usayd bin Hudayr (may Allah be pleased with him) said: "Once at night, when I was standing in prayer and had recited Surah al-Baqarah," then the narrator mentioned a similar incident (of the descent of the angels).
The chain of this hadith is sahih (authentic); al-Darimi recorded it.

It is narrated from the son of Sayyiduna Ka'b bin Malik that Sayyiduna Usayd bin Hudayr (may Allah be pleased with him) said something to the Messenger of Allah (peace and blessings be upon him), then the narrator mentioned something similar (to the previous hadith).
Sufyan bin Uyaynah narrated this report from al-Zuhri, and also Abd al-Razzaq through Ma'mar from al-Zuhri, and he from Ibn Ka'b bin Malik.

It is narrated from Abu Salamah (may Allah have mercy on him) that Sayyiduna Usayd bin Hudayr (may Allah be pleased with him) was praying one night, and he said: "Suddenly something like a cloud overshadowed me, in which there were lights like lamps. At that time my wife was sleeping by my side and she was expecting a child, while a horse was tied in the courtyard of the house. I feared that the horse might bolt and my wife be frightened and miscarry, so I ended my prayer. When morning came I mentioned this to the Prophet (peace and blessings be upon him), and he (peace and blessings be upon him) said: 'O Usayd! You should have kept reciting; that was an angel listening to the recitation of the Noble Qur'an.'"
I (Ibn Hajar) say: Al-Bukhari recorded it in mu'allaq form (ta'liqan), while Muslim and Ahmad recorded it from the hadith of Sayyiduna Abu Sa'id al-Khudri (may Allah be pleased with him), and al-Nasa'i reported it in his book al-Sunan al-Kubra in the Musnad of Sayyiduna Usayd bin Hudayr (may Allah be pleased with him).

It is narrated from Sayyidah Aishah (may Allah be pleased with her): "The Messenger of Allah (peace and blessings be upon him) divided Surah al-Baqarah into portions (for recitation in different rak'ahs of the prayer)."
Takhrij: Musnad Abi Ya'la: 4545; Shaykh al-Albani declared its chain hasan (good) in Irwa' al-Ghalil (342).

It is narrated from Sayyiduna Sahl bin Sa'd (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: "Indeed, everything has a hump (that is, a highest peak), and the hump of the Noble Qur'an is Surah al-Baqarah. Whoever recites it in his house at night, Satan will not enter his house for three days; and whoever recites it in his house during the day, Satan will not enter his house for three days."
Ibn Hibban recorded it in his Sahih through Abu Ya'la.

It is narrated from Sayyiduna Umar (may Allah be pleased with him) that he said: "I cannot imagine any person of sound mind and understanding going to sleep without reciting the last verses of Surah al-Baqarah: The Messenger has believed in what was revealed to him from his Lord, and (so have) the believers [Surah al-Baqarah: 285-286], for these verses have been granted from a special treasure beneath the Throne of Allah."
Imam Musaddad recorded this report; in its chain, through Yahya, Shu'bah and Abu Ishaq, the narrator was in doubt over the name Sa'd or Sa'id. This report makes clear the magnificent virtue of these verses and their importance for the believer.

It is narrated from Sayyiduna Awf bin Malik (may Allah be pleased with him) that Sayyiduna Abu Dharr (may Allah be pleased with him) was sitting in the gathering of the Messenger of Allah (peace and blessings be upon him); then he narrated a long report similar to the previous hadith, in which it is also mentioned: I said: "O Messenger of Allah! Of what Allah, the Mighty and Majestic, has revealed to you, what is the greatest?" He (peace and blessings be upon him) said: "Allah, there is no deity except Him, the Ever-Living, the Sustainer of all existence [Surah al-Baqarah: 255], until he (peace and blessings be upon him) completed the verse."
And the hadith of Sayyiduna Abu Dharr (may Allah be pleased with him) (of the same kind) is mentioned at the beginning of the hadiths on the accounts of the Prophets (peace and blessings be upon them), and it contains a description of the Kursi (Footstool) of Allah Almighty and its greatness.

It is narrated from Abdullah bin Ubayd bin Umayr (may Allah have mercy on him): "It was the practice of Sayyiduna Abd al-Rahman bin Awf (may Allah be pleased with him) that whenever he entered his house, he would recite Ayat al-Kursi in all its corners and nooks: 'Allah, there is no deity except Him, the Ever-Living, the Sustainer of all existence. Neither drowsiness overtakes Him nor sleep. To Him belongs whatever is in the heavens and whatever is on the earth. Who is it that can intercede with Him except by His permission? He knows what is before them and what is behind them, and they encompass nothing of His knowledge except what He wills. His Kursi extends over the heavens and the earth, and their preservation does not tire Him. And He is the Most High, the Most Great' [Surah al-Baqarah: 255]."
Abu Ya'la recorded it in his Musnad; all its narrators are thiqat (trustworthy) and reliable, but there is a break (inqita') in the chain because Abdullah bin Ubayd's hearing from Sayyiduna Abd al-Rahman bin Awf (may Allah be pleased with him) is not established.

It is narrated from Imam al-Hasan al-Basri (may Allah have mercy on him) that the Messenger of Allah (peace and blessings be upon him) said: "The most excellent surah of the Noble Qur'an is Surah al-Baqarah, and the greatest verse in it is Ayat al-Kursi; and indeed, Satan flees from the house in which Surah al-Baqarah is recited."
This hadith is mursal, but its chain up to Imam al-Hasan al-Basri (may Allah have mercy on him) is sahih (authentic).