Narrated Aishah, Ummul Muminin: The Messenger of Allah ﷺ said: When any of you goes to relieve himself, he should take with him three stones to cleans himself, for they will be enough for him.
Hadith Referenceسنن ابي داود / كتاب الطهارة / 40
Hadith Gradingالألبانی:حسن | زبیر علی زئی:إسناده حسن, مشكوة المصابيح (349), وصححه الدارقطني (1/54،55) وسنده حسن