Sunan Ibn Majah
845
Daif+2

Samurah said:“I memorized two pauses in the prayer, a pause before reciting and a pause when bowing. ‘Imran bin Husain denied that, so they wrote to Al-Madinah, to Ubayy bin Ka’b, and he said that Samurah was speaking the truth.”

DaifAl-Albani
DaifMuhammad Fouad Abd al-Baqi