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Hana deul
The ruling in the shafii school of thought is that it is permissible even if you have access to a surplus of water, the requirements for it's completion of procedure is that it be with something dry, non slippery, and it is karahiya to use bones, so things like rocks, sticks and derivatively paper. Many scholars of the shafii school have gone different lengths in this matter but here's a source of umdah by imam abi abbas