The Messenger of Allah said: "If you cannot find anywhere (for prayer) except sheep's resting-places and camels' resting-places, then perform prayer in the sheep's resting-places and do not perform prayer in the camels' resting-places." (Using translation from Ibn Mājah 768)   

قَالَ رَسُولُ اللَّهِ ﷺ «إِذَا حَضَرَتِ الصَّلَاةُ فَلَمْ تَجِدُوا إِلَّا مَرَابِضَ الْغَنَمِ وَأَعْطَانَ الْإِبِلِ فَصَلُّوا فِي مَرَابِضِ الْغَنَمِ وَلَا تُصَلُّوا فِي أَعْطَانِ الْإِبِلِ»