Sunan an-Nasa'i 801

It was narrated from Anas bin Malik, that his grandmother Mulaikah invited the Messenger of Allah (ﷺ) to come and eat some food that she had prepared for him. Then he said:"Get up and I will lead you in prayer." Anas said: "So I got up and brought a reed mat of ours that had turned black from long use, and spreaded some water on it. The Messenger of Allah (ﷺ) stood and the orphan and I stood in a row behind him, and the old woman stood behind us, and he led us in praying two Rak'ahs, then he left