Mahmud bin Ghaylan محمود بن غيلان العدوي مولاهم أبو أحمد · The Book on Purification

the Prophet, said: "The key to Salat is the purification, its Tahrlm is the Takblr, and its Tahlil is the Taslim."

"The Prophet prohibited using the leftover (water) of a woman's Purification."

"The Prophet forbade that a man should perform Wudu with the leftover (water) from a woman's purifcation." Or, he said: "from her drinking."

the Prophet said: "Let none of you urinate [in still water, then perform Wudu with it."1

the Prophet said: "Indeed Allah does not accept the prayer of one of you when he commits Hadath, until he performs Wudu."

"The Prophet performed Wudu' and wiped over his socks and sandals."

"I asked the Prophet about Al-Madhi. He said: "For Al-Madhi is Wudu, and for AI-Mani is Ghusl."

AlIah's Messenger said: "Pure clean earth is a purifier for the Muslim; even if he did not find water for ten years. Then if he finds water, then let him use it (for purification) on his skin. For, that is better."