To offer As-Salat (the prayer) in a sheep-fold

Narrated Abu Al-Taiyah:

Anas said, "The Prophet prayed in the sheep fold." Later on I heard him saying, "He prayed in the sheep folds before the construction of the, mosque."

حَدَّثَنَا سُلَيْمَانُ بْنُ حَرْبٍ، قَالَ حَدَّثَنَا شُعْبَةُ، عَنْ أَبِي التَّيَّاحِ، عَنْ أَنَسٍ، قَالَ كَانَ النَّبِيُّ ﷺ يُصَلِّي فِي مَرَابِضِ الْغَنَمِ، ثُمَّ سَمِعْتُهُ بَعْدُ يَقُولُ كَانَ يُصَلِّي فِي مَرَابِضِ الْغَنَمِ قَبْلَ أَنْ يُبْنَى الْمَسْجِدُ.