Narrated `Aisha: The Prophet had a mat which he used to spread during the day and use as a curtain at night. So a number of people gathered at night facing it and prayed behind him.
Hadith ReferenceSahih Bukhari / The Book of Adhan / Hadith: 730
Hadith Gradingمحدثین:أحاديث صحيح البخاريّ كلّها صحيحة