Islam urges us to preserve water sources to keep them pure and away from all types of pollution that may change any of its descriptions. In this hadith, Abu As-Sa'eb, the servant of Hesham ibn Zuhra, narrated that Abu Hurairah reported that the Prophet (ﷺ) forbade washing oneself due to intercourse or ejaculation in unrenewable stagnant water, for this act will lead to pollute and make the water dirty when people use it. It also makes it unsuitable for bathing as long as its characteristics (color, taste, or smell) change. The word "janabah" is applied to anyone who ejaculates or has intercourse. It is called that because a Muslim "yatajannab" (avoids) prayer and some acts of worship until he purifies himself. Abu As-Sa'eb asked Abu Hurairah about how to use the stagnant water for performing ablution. Abu Hurairah told him to scoop from it and perform ablution outside. This is for keeping the water pure and suitable for usage. A Muslim is commanded to preserve all types of water, flowing or stagnant, especially the latter, for it is unrenewable and subject to be corrupted if a person throws impurities into it..