Etiquette for greeting and entering the house

Tirmidhi Sharif Hadith #2688 Narrated Abu Hurairah: that the Messenger of Allah (ﷺ) said: By the One in Whose Hand is my soul! You will not enter Paradise until you believe, and you will not believe until you love one another. Shall I inform you about a matter which if you do it, then you will love one another? Spread the Salam among each other Tirmidhi Sharif Hadith #2689 Narrated 'Imran bin Husain: A man came to the Prophet (ﷺ) and said: 'As-Salamu 'Alaykum (Peace be upon you).' [He said:] So the Prophet (ﷺ) said: 'Ten.' Then another came and he said: 'As-Salamu 'Alaykum Wa Rahmatullah (Peace be upon you, and the mercy of Allah).' So the Prophet (ﷺ) said: 'Twenty.' Then another came and said: 'As-Salamu 'Alaykum Wa Rahmatullahi Wa Barakatuh (Peace be upon you, and the mercy of Allah, and His Blessings).' So the Prophet (ﷺ) said: 'Thirty Tirmidhi Sharif Hadith# 2690 Narrated Abu Sa'eed: Abu Musa sought permission to enter upon 'Umar. He said: 'As-Salamu 'Alaykum (Peace be upon you). May I enter?' 'Umar said: 'Once.' Then he was silent for some time. Then he said: 'As-Salamu 'Alaykum (Peace be upon you). May I enter?' 'Umar said: Twice.' Then he was silent for some time. Then he said: 'As-salamu 'Alaykum (Peace be upon you). May I enter?' 'Umar said: 'Three times.' Then he (Abu Musa) left. 'Umar said to the gate-keeper: 'What did he do?' He replied: 'He left. He said: 'Bring him to me.' So when he came, 'Umar said to him: 'What is this that you have done?' He said: 'The Sunnah.' He said: 'The Sunnah? By Allah! You had better bring me proof or a witness to clarify this, or I will do this or that to you.' He said So he came to us while we were sitting with Ansar. He said: 'O People of the Ansar! Are you not the most knowledgeable people about the Ahadith of the Messenger of Allah (ﷺ)? Did the Messenger of Allah (ﷺ) not say: Seeking permission is to be done three time. Either you are permitted, or other wise leave? The people began joking. Abu Sa'eed said: Then I raised my head toward him and said: Whatever punishment you are afflicted with because of this, then I shall be your partner in it. So he went to 'Umar to inform him him about it, and 'Umar said: I did not know about about this Tirmidhi Sharif Hadith #2691 Narrated Ibn 'Abbas: that Uman bin Al-Khattab said: I sought permission (to enter) from the Messenger of Allah (ﷺ) three times, then he permitted me https://www.toprevenuegate.com/y3c4u7i92?key=e00758e0d93301d4dfcc42e432aa4c4c