Musnad Ahmad 457:38

Yahya and Abd al-Rahman narrated to us, from Sufyan, from al-A’mash and Mansur, from Ibrahim, from Abd al-Rahman ibn Yazid, from Abu Mas’ud, from the Prophet, peace and blessings of Allah be upon him. And Waki’ said: Sufyan narrated to us, from Mansur, from Ibrahim, from Abd al-Rahman ibn Yazid, from Uqbah ibn Amr, from the Prophet, peace and blessings of Allah be upon him, who said: "Whoever recites the two verses from the end of Surat al-Baqarah in a night, they will suffice him."