al-Rabi' bin 'Amila الربيع بن عميلة · Chapters on Tafsir

"During the time of the Messenger of Allah (ﷺ), we would talk during Salat, so 'And stand before Allah with obedience (2:238) was revealed, ordering us to be silent." (Another chain) with similar wordings, but he added: "And we were forbidden from talking."