It was narrated that 'Alqamah bin Abi 'Alqamah, from his mother, that she heard 'Aishah say:"The Messenger of Allah got up one night and got dressed, then he went out. I told my slave girl Barirah to follow him, so she followed him until he came to Al-Baqi. Then he stood near if for as long as Allah willed that he should stand, then he left. Barirah came back before he did and told me, but I did not mention anything until morning came, then I mentioned that to him. He said: 'I was sent to the people of Al-Baqi' to pray for them

English translation · Sunan an-Nasa'i