حَدَّثَنَا مُحَمَّدُ بْنُ يَحْيَى، حَدَّثَنَا عَمْرُو بْنُ عُثْمَانَ، حَدَّثَنَا مُوسَى بْنُ أَعْيَنَ، حَدَّثَنَا مُحَمَّدُ بْنُ إِسْحَاقَ، عَنْ نَافِعٍ، عَنِ ابْنِ عُمَرَ، وَسُئِلَ، عَنِ الْحِيطَانِ، تُلْقَى فِيهَا الْعَذِرَاتُ فَقَالَ ‏"‏ إِذَا سُقِيَتْ مِرَارًا فَصَلُّوا فِيهَا ‏"‏ ‏.‏ يَرْفَعُهُ إِلَى النَّبِيِّ ـ صلى الله عليه وسلم ـ ‏.‏

It was narrated that Ibn 'Umar was asked about gardens in which excrement was thrown.: He said: "If it has been watered several times, then perform prayer there," and he attributed that to the Prophet. Translation Not Available

Book Ref: Sunan Ibn Majah Book 4 Hadith 744
Web Ref:  Sunan Ibn Majah Vol 1 Book 4 Hadith 744