Sunan Abi Dawud Book 2, Hadith 386
When the Messenger of Allah (ﷺ) began his prayer, he said: "Glory be to Thee, O Allah," and "Praise be to Thee" and "Blessed is Thy name, and Exalted is Thy greatness, sand there is no god but Allah."
Abu Dawud said: This tradition is not well known from 'Abd al-Salam b. Harb. No one narrated this except Talq b. Ghannam. A group of narrators reported the description of prayer from (the narrator) Budail; they did not mention therein this supplication.
When the Messenger of Allah (ﷺ) got up to pray at night (for tahajjud prayer) he uttered the takbir and then said: "Glory be to Thee, O Allah," and "Praise be to Thee" and "Blessed is Thy name," and Exalted is Thy greatness." and "There is no god but Thee." He then said: "There is no god but Allah" three times; he then said: "Allah is altogether great" three times: "I seek refuge in Allah, All-Hearing and All-Knowing from the accursed devil, from his evil suggestion (hamz), from his puffing up (nafkh), and from his spitting (nafth)" He then recited (the Qur'an).
Abu Dawud said: It is said that this tradition has been narrated by 'Ali b. 'Ali from al-Hasan omitting the name of the Companion of the Prophet (ﷺ). The misunderstanding occurred on the part of Ja'far.
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 Qur'an)"