The Book of Greetings
كتاب السلام
Chapter 132: Words to be Used for Offering Greetings
We used to reserve for the Prophet (ﷺ) his share of the milk, and he would come at night and offer greetings in such a manner as did not disturb those asleep and was heard only by those who were awake. In fact, the Prophet (ﷺ) came and offered greetings as usual.[Muslim].
The Messenger of Allah (ﷺ) passed through the mosque one day and there was a group of women (about ten of them) sitting in the mosque. He raised his hand to offer greetings.[At- Tirmidhi, who classified it as Hasan].
The Prophet (ﷺ) said: Those who are nearest to Allah are they who are first to give a salutation.
[Abu Dawud] And At- Tirmidhi narrated its meaning and classified it as Hasan.
I saw the Messenger of Allah (ﷺ) and said: "Alaikas-Salamu ya Rasulallah! (Upon you be peace, O Messenger of Allah)!" He said, "Do not say: 'Alaikas-Salamu (Upon you be peace).' This is the Salam to the dead."[Abu Dawud and At-Tirmidhi, who classified the hadith as Hasan Sahih].
Chapter 133: The Etiquette of Offering Greetings
[Al-Bukhari and Muslim].
The narration in Al-Bukhari adds: The Messenger of Allah (ﷺ) said, "The young should greet the elderly.''
[Abu Dawud, with a sound chain].
The narration in At-Tirmidhi is: The Messenger of Allah (ﷺ) was asked: "O Messenger of Allah! When two persons meet, who should greet the other first?'' The Messenger of Allah (ﷺ) said, "The person nearest to Allah (i.e., one who is more obedient and therefore closer to Allah will say: As-Salam first)."
Chapter 134: The Excellence of Greeting the Acquaintance Repeatedly
[Al-Bukhari and Muslim].
The Messenger of Allah (ﷺ) said, "When one of you meets a brother (in Faith) he should greet him. Then if a tree or a wall or a stone intervenes between them and then he meets him again, he should greet him."[Abu Dawud].
Chapter 135: The Excellence of Greeting Upon Entering the House
The Messenger of Allah (ﷺ) said to me, "Dear son, when you enter your house, say As- Salamu 'Alaikum to your family, for it will be a blessing both to you and to your family."[At-Tirmidhi, who classified it as Hasan Sahih].
Chapter 136: Greeting Children
[Al-Bukhari and Muslim].
Chapter 137: A man sayinig salam to his wife or a mahram woman or non-mahrmam woman or women not fearing tribulation by them and giving them salam with this condition
[Muslim].
In At-Tirmidhi: that the Messenger of Allah (ﷺ) passed through the Masjid one day, and a group of women were sitting, so he motioned his hand with the salam.
Chapter 138: Greeting Non-Muslims and the Prohibition of Taking Initiative in Doing So
Messenger of Allah (ﷺ) said, "When the people of the Book greet you, respond with: 'Wa 'alaikum' (And upon you)".[Al-Bukhari and Muslim].
The Prophet (ﷺ) passed by a mixed company of people which included Muslims, polytheists and Jews, and he gave them the greeting (i.e., saying As- Salamu 'Alaikum).[Al-Bukhari and Muslim].
Chapter 139: The Excellence of Greeting Upon Arrival and Departure
[Abu Dawud and At-Tirmidhi].
Chapter 140: Seeking Permission to Enter (Someone's House) and Manners Relating to It
The Messenger of Allah (ﷺ) said, "Permission is to be sought thrice. If permission is granted, you may enter; otherwise, go back."[Al- Bukhari and Muslim].
The Messenger of Allah (ﷺ) said, "Seeking permission to enter (somebody's house) has been prescribed in order to restrain the eyes (from looking at something we are not supposed to look at)."[Al-Bukhari and Muslim].
A man of Banu 'Amir tribe has told us that he had asked the Prophet (ﷺ) for permission to enter when he was at home. He said: "May I enter?" the Messenger of Allah (ﷺ) said to the servant, "Go out and instruct him about the manner of seeking permission. Tell him to say: As-Salamu 'Alaikum (may peace be upon you). May I come in?" The man heard this and said: "As-Salamu 'Alaikum (may peace be upon you). May I come in?" The Prophet (ﷺ) then granted him permission and he entered.[Abu Dawud].