The Prophet(ﷺ) had two periods of silence; when he began his prayer and when he finished the recitation (of the Quran). He then narrated the tradition like the version of Yunus.
Sunan Abi Dawud Book 2, Hadith 388
← Previous Hadith I remember two period of silence in prayer, one when the imam said the takbir; and one when he finished reciting the Fatihah and the surah when he was about to bow. But Imran ibn Husayn took it as something strange. So they wrote about it to Ubayy (ibn Ka'b) in Medina. He verified the statement of Samurah.

Abu Dawud said: Humaid also narrated in this tradition the words "and one period silence when he finished the recitation (of the Quran)"

Sunan Abi Dawud Book 2, Hadith 387 Next Hadith → Samurah ibn Jundub and Imran ibn Husayn had a discussion (about the periods of silence in prayer). Samurah then said that he remembered two periods of silence from the Messenger of Allah (ﷺ); one when he uttered the takbir and the other when he finished reciting: "Not of those with whom Thou art angry, nor of those who go astray" (i.7).

Samurah remembered that, but Imran ibn Husayn rejected it.

Then they wrote about it to Ubayy ibn Ka'b. He wrote a letter to them and gave a reply to them that Samurah remembered correctly.

Sunan Abi Dawud Book 2, Hadith 389