Musnad Ahmad 1017:114

Waki’ narrated to us, Bashir ibn al-Muhajir narrated to us, from ‘Abdullah ibn Buraydah, from his father, who said: The Messenger of Allah (peace and blessings of Allah be upon him) said: "Learn Surah al-Baqarah, for taking it is a blessing, and leaving it is a regret, and the sorcerers (al-batalah) cannot withstand it."