I heard the Messenger of Allah ﷺ say, "Recite the Quran, for it will come on the Day of Resurrection as an intercessor for its companions. Recite the two bright ones, al-Baqarah and Surat Al Imran, for they will come on the Day of Resurrection as if they were two clouds, or two shades, or two flocks of birds in ranks, pleading on behalf of their companions. Recite Surat al-Baqarah, for taking hold of it is a blessing, abandoning it is a regret, and the magicians cannot overcome it."
سمعت رسول الله ﷺ يقول: اقرؤوا القرآن، فإنه يأتي يوم القيامة شفيعا لأصحابه، اقرؤوا الزهراوين البقرة وسورة آل عمران، فإنهما يأتيان يوم القيامة كأنهما غمامتان أو كأنهما غيايتان أو كأنهما فرقان من طير صواف تحاجان عن أصحابهما، اقرؤوا سورة البقرة فإن أخذها بركة، وتركها حسرة، ولا يستطيعها البطلة.
Muslim narrated it in the Book of the Prayer of Travelers (804), from Hasan bin Ali Hulwani, who said, Abu Tuba (that is, Rabi bin Nafi) told us, Muawiya (meaning Ibn Salam) told us, from Zayd, that he heard Abu Salam say, Abu Umama told me, and he related it.