Al-Bara' (May Allah be pleased with him) reported:
Whenever we performed Salat behind the Messenger of Allah (ﷺ), we liked to be on his right side so that his face might turn towards us (at the end of the Salat). One day, I heard Messenger of Allah (ﷺ) supplicating, "O my Rubb! Shield me from Your Torment on the Day when You will gather (or said, 'resurrect') Your slaves."[Muslim].
App reference: Book 9, Hadith 105
Arabic/English book reference: Book 9, Hadith 1095