“The Messenger of Allah passed by two graves, and he said: ‘They are being punished but they are not being punished for anything major. One of them is being punished because of urine, and the other is being punished because of backbiting.’”
“I came to the Prophet when he was performing ablution and greeted him with the Salam, but he did not return (the greeting). When he had finished his ablution he said: ‘Nothing prevented me from returning your greeting but the fact that I need to have ablution.’” (Da’if) Another chain with similar wording.
“A man passed by the Prophet while he was urinating, and greeted him with the Salam, but he did not return the greeting. While he finished, he struck the ground with his palms and did dry ablution (Tayammum), then he returned the greeting.”
“A man passed by the Prophet while he was urinating, and greeted him by the Salam. The Messenger of Allah said to him: “If you see me in this situation, do not greet me with the Salam, for if you do that I will not respond to you.’”
“The Messenger of Allah said: ‘No one among you should urinate into standing water.’”
“The Messenger of Allah came out to us holding a small shield in his hand. He put it down, then he sat down and urinated towards it. Some of the people said: ‘Look at him, he urinates like a woman!’ The Prophet heard that and said: ‘Woe to you! Do you not know what happened […]
“The Messenger of Allah passed by two new graves, and he said: ‘They are being punished, but they are not being punished for anything major. One of them was heedless about preventing urine from getting on his clothes, and the other used to walk about spreading malicious gossip.’”
The Messenger of Allah said: “No two people should converse while relieving themselves, each of them looking at the private parts of the other, for Allah, the Mighty and Sublime, hates that.” (Da’if) Other chains with similar wording.
The Messenger of Allah forbade urinating into standing water.
“The Messenger of Allah said: ‘No one among you should urinate into standing water.’”