Ass salaamu alaykum,
Sunnah Upon Entering A House!!:
It is sunnah (if your visiting a house other than yours) to stand on either the right or left hand side of the entrance
Narrated Abdulllahi ibn Busr radiyallaahu 3anhu that if the Prophet salalaahu 3alayhi wasallaam were to come to/ approach a door 9entrance of someones house) he would stand either on the right or left hand side of ituntil he was granted permission to enter, If not the would leave...(Hadeeth Hasnun Saheeh).
It is also important to ask permision before entering
The hadeeth above cearly proves that..
& an athar narrated by 3ataa ibn rabaah he said I asked Ibn Abbaas radiyallaahu 3anhu Do i have to seek permission from my sister?
he said: yes! , I said:There are two of my sisters whom live with me I provide for them, Do I have to seek their permission? He said: Yes!! would you like it if you were to see them naked!!??..and then he recited qawluhuu ta3aalaa:
Ya ayyuhal latheena aamanuu layasta'hinkum al-latheena malakat aymaanukum UNTIL .......
Thalaathu 3awraatin
He said:And they were'nt commanded to seek permission ONLY in these three times (thaalaathu 3awraat) ...
He then recited:
"Wa idhaa balaghal adfaalu minkum al-hulm..."
Ibnu Abbaas said: seeking permission is Obligatory!!
and ibnu Jurayj added: on every single one of man kind!!
AND.... hadeeth Kaldah Ibn Hanbal that he entered upon the Prophet with some food (laban, jidaayah, and dhaghaabees) I did not give salaams , nor did I ask for permission So He said: Go back & say : Assalaamu alaykum, May I enter??
It is also sunnah to knock with your adhaafeer/Fingernails
Narrated Abas ibnu Maalik: The doors of the Prophet salalaahu 3alayhi wasallam were kocked with the adhaafeer/fingernails!!
Also one must give Salaams:
Hadeeth Kaldah as mentioned above that he told him to go back and say : Assalaamu alaykum, May I enter!!??
and an athar by 3ataa , he said: I heard Abu huraira say: If he says (the person at the door) may i enter & does'nt give salaams say: No!!...until you come with the keys , Isaid: As-salaam, He said : Yeah!!....(Saheeh)
It is also Disliked to answer ...(when said : who is it!!??) IT 'S ME!!
Muhammed ibnul Munkadirsaid: I heard Jaabir ibnu Abdillah say: I went to the prophet in regards of some debt that was on my Father, I knocked on the door, He (the Prophet salalaaahu 3alayhi wasalaam) said: who is it? , I replied: Me/it's me! , He said: ME!!...........ME!????? ..I was under the impression that he disliked it!!
It is also important for one to have Dhikr Allah before entering the house..(eg: Basmalah..etc)
Jaabir ibnu Abdillah radiyallahu 3anhu sad , he heard the Prophet salalaaahu 3alayhi wasalaam sal:
If a man enters his house with the rememerance of Allah azza wa jall and does so when he's eating (his supper), the shaytaan says: there is no shelter for you tonight nor any supper. and if he enters and does not have his remembrance whilst eating..the sahytaan says: you have reached your over night shelter/stop ....& if he does not remember Allah with hisfood: the saytaan says you have obtained your shelter and your supper!!....(Bukhari and Muslim)
that's it inshaAllah....
ffended: 
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eace:
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