It was narrated that Anas said: "The Messenger of Allah (ﷺ) entered upon us and the only people present were myself, my mother, the orphan and Umm Harh, my maternal aunt. He said: “Stand up and I will lead you in prayer.' It was not the time for a (prescribed) prayer. And he led us in prayer”"
SahihSahihSahih MuslimBook 10 · Hadith 26