Musnad Ahmad 920:5

Abdullah narrated to us, Muhammad ibn Abi Bakr narrated to me, Bishr ibn Umar narrated to us, Shu'bah narrated to us, from Ali ibn Zayd, from Yusuf al-Makki, from Ibn Abbas, from Ubayy, who said: "The last verse to be revealed was: {There has certainly come to you a Messenger from among yourselves} [At-Tawbah: 128]—the verse."