Sunan Ibn Majah 744
سنن ابن ماجه#744Da'ifIt 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
Scholarly Authentication
We show the most cautious grade (weakest-wins) as the overall label. Individual scholars graded it as follows:
Al-AlbaniDaif
Muhammad Fouad Abd al-BaqiDaif
Shuaib Al ArnautDaif
Zubair Ali ZaiDaif
In-book reference: 4:10