The reason for describing dung as *ruks*
Machine translationRead the Arabic original
Question:
He says: Honorable Shaykh, may Allah grant you success, it is known that dung is pure, so why did the Prophet (peace and blessings be upon him) say about dung that it is *ruks*?
Answer:
The dung of an animal whose meat is not eaten, the dung of a donkey, the dung of any animal whose meat is not eaten is impure, yes.
He says: Honorable Shaykh, may Allah grant you success, it is known that dung is pure, so why did the Prophet (peace and blessings be upon him) say about dung that it is *ruks*?
Answer:
The dung of an animal whose meat is not eaten, the dung of a donkey, the dung of any animal whose meat is not eaten is impure, yes.
Source
شرح كتاب المنتقى من أخبار المصطفى صلى الله عليه وسلم، بداية من باب وجوب الاستنجاء بالحجر أو الماء — islamhouse.com (1:04:28)
The Arabic text is a machine transcription of the audio recording.