Is it obligatory to repeat the ghusl with water if feces or urine are found when wiping with tissues after istinja’ with water, or is the tissue sufficient to remove the impurity, and is wiping with tissues after water sufficient as long as the impurity has not spread beyond the usual area, knowing that pouring water may lead to the impurity spreading?

Combining the use of stones (or similar materials like tissues) and water for Istinjā’ (cleansing after defecation or urination) is better than relying on only one of them. Stones should be used first to reduce the impurity and minimize water usage, followed by water for complete purification. If one starts with water, there is no need to use stones thereafter. If one wishes to rely on only one of them, water is better because it purifies. It is disliked to reverse the order (using water for Istinjā’ then stones for Istijmār) without benefit. If the impure discharge contaminates something else, water must be used. As for the discharge exceeding its usual place, water is necessary.