All perfect praise be to Allaah, The Lord of the Worlds. I testify that there is none worthy of worship except Allaah, and that Muhammad is His slave and Messenger.
With regard to the last two verses of Soorat Al-Baqarah being sent down from Paradise, then there is a Hadeeth with the wording: “I was given these last verses of Soorat Al-Baqarah from a treasure under the Throne. None before me has been given them, and none after me will be given them.” This Hadeeth was narrated by An-Nasaa’i in As-Sunan Al-Kubra and Ibn Hibbaan in As-Saheeh. Al-Arna’oot said: “Its chain of narrators is Saheeh (sound) according to the conditions of a Saheeh Hadeeth.”
We have not found the Hadeeth with the wording “out of the treasures of Paradise”; however, it is proven in the Sunnah that the Throne is above Al-Firdaws (the highest point of Paradise) as in the Hadeeth which reads: “If you were to ask Allaah for anything, ask Him for Al-Firdaws, for it is the middle of Paradise and the highest point of Paradise and above it is the Throne of Ar-Rahmaan (Allaah, The Most Merciful).” [Al-Bukhari]
As regards these verses being written two thousand years before creation, then there is a Hadeeth with the wording: “Allaah wrote a book two thousand years before He created the heavens and the Earth, and in it are the last two verses of Soorat Al-Baqarah. The devil will not come near a house in which they are recited for three nights." [Sunan At-Tirmithi and Musnad Ahmad]
As to what is mentioned in regard to being sufficient instead of Tahajjud prayer in the night, then there is a Hadeeth narrated by Abu Mas'ood Al-Badri with the wording, “Whoever recites the last two verses from Soorat Al- Baqarah, they will be sufficient for him.” [Al-Bukhari and Muslim]
It was said that the meaning of ‘sufficient for him’ is that they are sufficient for him instead of night prayer; it was also said: sufficient as protection from the devil, and it was further said: sufficient as protection from calamities; or possibly all those meanings put together. This is said by Imaam An-Nawawi in Sharh Saheeh Muslim.
Finally, Al-Haafith Ibn Hajar said in Al-Fat-h, “The first interpretation was explicitly reported by ‘Aasim from ‘Alqamah from Ibn Mas’ood, “Whoever recites (the two verses at) the end of Soorat Al-Baqarah, it will be sufficient for him instead of standing in prayer for one night.”
Allaah Knows best.