It is narrated from Sayyiduna Anas bin Malik (may Allah be pleased with him) that his grandmother, Malikah, invited the Messenger of Allah (peace and blessings be upon him). The Messenger of Allah (peace and blessings be upon him) ate the food, then said: "Stand up so that I may pray for you." Sayyiduna Anas (may Allah be pleased with him) said: So I stood up and took a mat which had become black due to old age, and I sprinkled it with water. The Messenger of Allah (peace and blessings be upon him) stood on it, and I and an orphan formed a row behind him, and the old woman stood behind us. The Messenger of Allah (peace and blessings be upon him) led us in two rak‘ahs, then he departed.

It is narrated from Sayyiduna Abdullah bin Utbah (may Allah be pleased with him) that I went to Sayyiduna Umar bin Khattab (may Allah be pleased with him) during the hot weather, and I found him performing voluntary prayers. So I stood behind him, and he drew me close and made me stand right next to him on his right side. After that, when another person came, I moved back and we both formed a row behind Sayyiduna Umar (may Allah be pleased with him).