“We used to recite the Opening of the Book and a Surah behind the Imam in the first two Rak’ah of the Zuhr and the ‘Asr, and in the last wo Rak’ah (we would recite) the Opening of the Book.”
Sunan Ibn Majah Book 5, Hadith 41
← Previous Hadith “Should I recite when the Imam is reciting?” He said: “A man asked the Prophet (ﷺ) whether there was recitation in every prayer. The Messenger of Allah (ﷺ) said: ‘Yes.’ A man among the people said: ‘It has become obligatory.’”

Sunan Ibn Majah Book 5, Hadith 40 Next Hadith → “There are two pauses which I memorized from the Messenger of Allah (ﷺ), but `Imran bin Husain denied that. We wrote to Ubayy bin Ka`b in Al-Madinah, and he wrote that Samurah had indeed memorized them.”

(One of the narrators) Sa`eed said: "We said to Qatadah: 'What are these two pauses?' He said: 'When he started his prayer, and when he finished reciting.'

Then later he said: 'And when he recited: 'Not (the way) of those who earned your anger, nor of those who went astray.' They used to like (for the Imam) when he had finished reciting to remain silent until he had caught his breath.'"

Sunan Ibn Majah Book 5, Hadith 42