The prohibition on using bones and dung is established by hadith. Reports connect these items to provision for jinn, explaining their exclusion from cleansing materials.
Whether a prohibited item might physically remove filth and whether it is permitted to be used are separate legal questions; the ruling here prohibits its use.
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Istinja: Methods, Preference and Juristic Differences
The prohibition on using bones and dung is established by hadith. Reports connect these items to provision for jinn, explaining their exclusion from cleansing materials.
Whether a prohibited item might physically remove filth and whether it is permitted to be used are separate legal questions; the ruling here prohibits its use.