It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with them both) that the Messenger of Allah (peace and blessings be upon him) said: Do not face the Qiblah at the time of relieving yourselves, do not withhold (animals') milk to deceive, and do not call out to each other like the shepherds of goats.

Sahl narrates from his father, Sayyiduna Mu’adh bin Anas (may Allah be pleased with him), that the Noble Prophet (peace and blessings be upon him) said: Indeed, there are such servants of Allah that on the Day of Resurrection, Allah will neither speak to them, nor purify them, nor look at them. Someone asked: O Messenger of Allah! Who are these people? He (peace and blessings be upon him) said: The one who disassociates and shows aversion from his parents, the one who disowns his children, and the person upon whom some people bestowed favors, but he was ungrateful for their blessings and disassociated himself from them.

It is narrated from Sayyiduna Abu Shurayh Khuza'i, may Allah be pleased with him, that the Messenger of Allah, peace and blessings be upon him, said: The greatest rebel against Allah Almighty is the one who kills someone who has not killed, or demands the blood of the days of ignorance from the people of Islam, or describes in his sleep what his eyes have not seen (i.e., relates false dreams).

Narrated from Sayyiduna Ruwaifi’ bin Thabit Ansari (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: O Ruwaifi’! It is possible that your life will be prolonged, so inform the people that whoever ties a knot in his beard, or puts on a string necklace, or uses animal dung or bone for istinja (purification), then Muhammad (peace and blessings be upon him) is free from him. In another narration it is stated: Such a person will be free from that which was revealed to Muhammad (peace and blessings be upon him).

Syedna Abu Hurairah (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) said: Whoever attributes to me something which I have not said, let him prepare his abode in the Fire. Whoever is consulted by his Muslim brother, but gives him advice without wisdom and uprightness, then he has betrayed him. And whoever gives a legal verdict without proper investigation, then its sin will be upon the one who gave the verdict.

Sayyiduna Abu Hurairah (may Allah be pleased with him) narrates that the Messenger of Allah (peace and blessings be upon him) forbade a person from drinking water while standing, from drinking water directly from the mouth of a water-skin, and from preventing his neighbor from placing wood on his wall.

It is narrated from Sayyiduna Wathilah bin Asqa’ (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: The greatest lie is that a man attributes himself to someone other than his (real) father, or claims to have seen with his eyes what he did not see (i.e., narrates false dreams), or attributes to the Messenger of Allah (peace and blessings be upon him) something which he (peace and blessings be upon him) did not say.

It is narrated from Sayyiduna Imran bin Husain, may Allah be pleased with him, who says: I bear witness to the Messenger of Allah, peace and blessings be upon him, that he, peace and blessings be upon him, forbade drinking from green-colored pitchers, wearing gold rings, and (wearing) silk.

It is narrated from Sayyiduna Thawban (may Allah be pleased with him) that the Messenger of Allah (peace and blessings be upon him) said: It is not lawful for any Muslim to look inside someone’s house without permission; if he does so, it would mean that he has entered. Also, no person should lead people in prayer in such a way that he supplicates only for himself; if he does so, it would mean that he has betrayed them. And no person should pray while restraining urine or feces; he should first relieve himself.