If a mouse or dog has eaten or sniffed a piece of bread, set aside the part that was sniffed or eaten and consume the rest. There is no harm in performing ablution with water from reservoirs in which urine has been introduced if the color of the water overpowers the urine. However, if the urine overpowers the water, it should not be used for ablution. It is not permissible to perform ablution with milk, as ablution should be done with water or clean earth (tayammum). It is permissible to perform ablution with nabidh (a drink), as The Prophet صلى الله عليه وعلى آله وسلم performed ablution with it. This was water in which a few dates were soaked, leaving a clear liquid on top. If the dates change the color of the water, it should not be used for ablution. The type of nabidh allowed for ablution and drinking is one in which dates are soaked in the morning and drunk in the evening, or soaked in the evening and drunk in the morning. If a person performs ghusl (ritual washing) in a low area and fears that water will flow back into the area from which they are washing, they should pour one handful of water in front of them, one to their right, one to their left, and one behind them, then proceed with the washing. If water splashes onto a person’s clothes or body from the water used for cleansing (istinja), there is no harm (for ablution). If water splashes from one’s hand into a container or spills onto the ground and then falls into the container, there is no harm. The same applies during ghusl from major impurity. If a dead animal falls into flowing water, there is no harm in performing ablution from the side of the water that is free of the dead animal.
Commentary #12