ßÊÇÈ ÇáÕáÇÉ : Hadeeth No:417 : 'Itban bin Malik:
The Prophet came to my house and said, "Where do you like me to pray?" I pointed to a place. The Prophet then said, "Allahu Akbar", and we aligned behind him and he offered a two-Rak'at prayer.
...
ßÊÇÈ ÇáÚíÏíä : Hadeeth No:923 : Ibn Umar:
The Prophet used to proceed to the Musalla and an 'Anaza used to be carried before him and planted in the Musalla in front of him and he would pray facing it (as a Sutra).
...