Musnad Ahmad Hadith 1715

al-Harith bin Khazamah brought these two verses at the end of Bara"ah [at-Tawbah]: “Verily, there has come unto you a Messenger (Muhammad ﷺ) from amongst yourselves. It grieves him that you should receive any injury or difficulty. He (Muhammad ﷺ} is anxious over you; for the believers (he ﷺ is) full of pity, kind, and merciful. But if they turn away, say (O Muhammad ﷺ): "Allah is sufficient for me. La ilaha illa Huwa (none has the right to be worshipped but He) in Him I put my trust and He is the Lord of the Mighty Throne.” [at-Tawbah 9:128, 129] to "Umar bin al-Khattab, who said: Who else will testify to this? He said: I do not know; by Allah, I bear witness that I heard them from the Messenger of Allah (ﷺ) and I understood them and memorised them, And ʼUmar said: And by Allah, I bear witness that I heard them from the Messenger of Allah (ﷺ). Then he said: If they were three verses, I would have made them a soorah on its own; look for a soorah of the Qur"an and put them with it. Then I put them at the end of Bara"ah [at-Tawbah].