وَعَنْ اِبْنِ عُمَرَ رَضِيَ اَللَّهُ عَنْهُمَا-]
قَالَ]: «نَهَى اَلنَّبِيُّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: أَنْ يُصَلَّى فِي سَبْعِ مَوَاطِنَ: اَلْمَزْبَلَةِ، وَالْمَجْزَرَةِ، وَالْمَقْبَرَةِ، وَقَارِعَةِ اَلطَّرِيقِ، وَالْحَمَّامِ، وَمَعَاطِنِ اَلْإِبِلِ، وَفَوْقَ ظَهْرِ بَيْتِ اَللَّهِ»
The Messenger of Allah (sallallahu alayhi wa sallam) forbade prayer at seven places; a dump, a slaughter house, a graveyard, the middle of the path, a bathroom, and where camels sit at a watering place and on (roof) of the Kabah.
Bulugh al-Maram 257, Book 2, The Book of Prayer, Hadith 78. 1 min read