A clean, suitable material capable of cleansing the exit may fall under the rule of stone and dry earth, unless it is specifically prohibited.
The objective is inqa’, actual cleansing. Bones, dung and food are exceptions to the general allowance.
Opening interactive controls...
Conditions for an Equivalent Cleansing Material
Istinja: Methods, Preference and Juristic Differences
A clean, suitable material capable of cleansing the exit may fall under the rule of stone and dry earth, unless it is specifically prohibited.
The objective is inqa’, actual cleansing. Bones, dung and food are exceptions to the general allowance.