The Messenger of Allah (ﷺ) said, "Avoid (entering a place) in which are women (uncovered or simply to mix with them in seclusion)." A man from the Ansar said, "Tell me about the brother of a woman's husband." He replied, "The brother of a woman's husband is death."[Al- Bukhari and Muslim].

The Messenger of Allah (ﷺ) said, "No one of you should meet a woman in privacy unless she is accompanied by a Mahram (i.e., a relative within the prohibited degrees)."[Al-Bukhari and Muslim].

The Messenger of Allah (ﷺ) said, "There are two types of people who will be punished in Hell and whom I have not seen: men having whips like the tails of cows and they will be beating people with them, and, women who will be dressed but appear to be naked, inviting to evil; and they themselves will be inclined to it. Their heads will appear like the humps of the Bactrian camel inclined to one side. They will not enter Jannah and they will not smell its fragrance which is perceptible from such and such a distance."[Muslim].

The Messenger of Allah (ﷺ) forbade shaving a part of the head.[Al-Bukhari and Muslim].

The Messenger of Allah (ﷺ) said, "He who swears by a religion other than that of Islam, is like what he has professed. He who kills himself with something, will be tormented with it on the Day of Resurrection. A person is not bound to fulfill a vow about something which he does not possess. Cursing a believer is like murdering him."[Al-Bukhari and Muslim].

The Messenger of Allah (ﷺ) said, "Do not curse one another, invoking Curse of Allah or Wrath of Allah or the fire of Hell."[Abu Dawud and At-Tirmidhi].

The Messenger of Allah (ﷺ) said, "When two persons indulge in abusing each other, the beginner will be the sinner so long as the oppressed does not transgress the limits."[Muslim].

A drunkard was brought to the Prophet (ﷺ). He said, "Give him a beating." Then some beat him with their hands, some with their shoes, and some with (a folded) piece of cloth. When he left, someone said to him: "May Allah disgrace you!" The Prophet (ﷺ) said, "Do not help Satan overcome him by uttering such words."[Al- Bukhari].

The Messenger of Allah (ﷺ) said, "Do not abuse the dead, because they have attained that which they had forwarded (i.e., their deeds, good or bad)."[Al-Bukhari].

The Messenger of Allah (ﷺ) said, "The gates of Jannah are opened on Mondays and Thursdays, and then every slave (of Allah) is granted forgiveness if he does not associate anything with Allah in worship. But the person in whose heart there is rancour against his (Muslim) brother, they will not be pardoned and with regard to them it will be said twice: 'Hold both of them until they are reconciled with each other."'[Muslim].

I heard the Messenger of Allah (ﷺ) saying, "If you find faults with Muslims, you will corrupt them."[Abu Dawud].

"We have been prohibited from spying (on Muslims) and finding faults (with them). But we can take to task only and only if the sin is overt.[Abu Dawud].

The Messenger of Allah (ﷺ) said, "Do not express pleasure at the misfortune of a (Muslim) brother lest Allah should bestow mercy upon him and make you suffer from a misfortune."[At- Tirmidhi].

The Messenger of Allah (ﷺ) said, "Two matters are signs of disbelief on the part of those who indulge in them: Defaming and speaking evil of a person's lineage, and wailing over the dead."[Muslim].

The Prophet (ﷺ) said, "Allah, the Exalted, says: 'I will contend on the Day of Resurrection against three (types of) people: One who makes a covenant in My Name and then breaks it; one who sells a free man as a slave and devours his price; and one who hires a workman and having taken full work from him, does not pay him his wages."'[Al- Bukhari].

The Prophet (ﷺ) observed: "There are three (types of) people to whom Allah will neither speak on the Day of Resurrection nor look at them nor purify them, and they will have a painful chastisement." The Messenger of Allah (ﷺ) repeated it three times. Abu Dharr (May Allah be pleased with him) remarked: "They are ruined. Who are they, O Messenger of Allah?" Upon this, the Messenger of Allah (ﷺ) said, "One who lets down his lower garments (below his ankels) out of arrogance, one who boasts of his favours done to another; and who sells his goods by taking a false oath."[Muslim].

I was beating my slave with a whip when I heard a voice behind me which said: "Abu Mas'ud! Bear in mind..." I did not recognize the voice for the intense anger I was in. Abu Mas'ud added: As he came near me, I found that he was the Messenger of Allah (ﷺ) who was saying, "Abu Mas'ud! Bear in mind that Allah has more dominance upon you than you have upon your slave." Then I said: "I will never beat any slave in future."Another narration is: The whip dropped from my hand in awe of the Prophet (ﷺ).Still another narration is: I said: "He is free for the sake of Allah." He (ﷺ) said, "If you had not done this, you would have been singed by the Fire."[Muslim].

The Messenger of Allah (ﷺ) saw an ass which had been branded on the face. He disapproved of it. Upon this Ibn 'Abbas (May Allah be pleased with them) said, "By Allah, I shall not brand (the animal) but on a part at a distance from the face." Ibn 'Abbas (May Allah be pleased with them) then commanded branding on the hips; he was the first person to brand the animals on hips.[Muslim].

The Prophet (ﷺ) said, "Keep away from the seven fatalities." It was asked: "What are they, O Messenger of Allah?" He (ﷺ) replied, "Associating anything with Allah in worship (i.e., committing an act of Shirk), sorcery, killing of one whom Allah has declared inviolable without a just cause, devouring the property of an orphan, the eating of usury (Riba), fleeing from the battlefield and accusing chaste believing women, who never even think of anything touching their chastity."[Al-Bukhari and Muslim].

[Muslim].

The narration in At-Tirmidhi adds: And the one who records it, and the two persons who stand witness to it.