Ibn Majah recorded in his Sunan from Ibn Umar, may Allah be pleased with him that the prophet said:
“It is not permissible to offer the prayer in seven places: the top of the house of Allah (the Ka’bah), the graveyards, the dung heaps(i.e.,waste areas), the slaughter houses, the restroom, the resting places of camels and the middle of the road.” (At-Tirmithi no.346 and Ibn Majah no.747
The hadeeth is not authentic and that it is weak.