The act of cleaning oneself (after urinating and defecation) with water is called istinjaa' (الاستنجاء) and cleaning with other than water like stones and tissues and the likes is called istijmaar (الاستجمار)
So in conclusion while performing istijmaar water is not used.
Therefore the issue of using Zamzam water to perform istijmaar is ruled out completely.
And Allaah Knows Best 📚
For details:
https://on.soundcloud.com/3h7Tc
Complete playlist on Fiqh:
https://on.soundcloud.com/pKoBk
https://t.me/TarbiyyahAlHind/1489
So in conclusion while performing istijmaar water is not used.
Therefore the issue of using Zamzam water to perform istijmaar is ruled out completely.
And Allaah Knows Best 📚
For details:
https://on.soundcloud.com/3h7Tc
Complete playlist on Fiqh:
https://on.soundcloud.com/pKoBk
https://t.me/TarbiyyahAlHind/1489