From Sahih Muslim (Hadith 383):
Abdullah b. Muhammad narrated the same hadith on the authority of Abu Huraira and in the transmission by Malik the words are that he (the Holy Prophet) recited the verse:" but that my heart may rest at ease" and completed it. This hadith has also been narrated by Abd b. Humaid Ya'qub, i. e. son of Ibrahim b. Sa'd, Abu Uwais, Zuhri, like the one narrated by Malik with the same chain of transmission and said: He recited this verse till he completed it
Reference: Muslim 383