Imam Ahmad recorded from Zirr bin Hubaysh that Ubayy bin Ka`b told him that
Ibn Mas`ud did not record the Mu`awwidhatayn in his Mushaf (copy of the Qur'an).
So Ubayy said, "I testify that the Messenger of Allah informed me that Jibril
said to him,
[قُلْ أَعُوذُ
بِرَبِّ الْفَلَقِ ]
(Say: "I seek refuge with the Lord of Al-Falaq.'')(113:1) So he said it. And
Jibril said to him,
[قُلْ أَعُوذُ
بِرَبِّ النَّاسِ ]
(Say: "I seek refuge with the Lord of mankind.'') (114:1) So he said it.
Therefore, we say what the Prophet said.''