Sahih Muslim, 1296

Rapporté par Ibn ‘Umar رضي الله عنه : Parfois, le Messager d’Allah ﷺ récitait le Coran, passait par un verset de prosternation et se prosternait, et il le faisait avec nous. Mais nous étions si nombreux autour de lui qu’aucun de nous ne trouvait de place pour se prosterner. Et cela arrivait en dehors de la prière

Ibn 'Umar reported:Sometimes the Messenger of Allah (ﷺ) recited the Qur'an, and would pass by (recite) the verse of sajda and performed prostration and he did this along with us, but we were so crowded in his company that none of us could find a place for performing prostration. (and it was done on occasions) other than prayer