بِسمِ الله
Translation 
The messenger of Allah (may the peace and blessings of Allah be upon him) said:
When a person enters his house and mentions the name of Allah at the time of entering it and upon eating the food, shaytan says (addressing himself and others with him): You have no place to spend the night and no evening meal; but when he enters without mentioning the name of Allah, the Satan says: You have found a place to spend the night, and when he does not mention the name of Allah upon eating food, he (shaytan) says: You have found a place to spend the night and evening meal.
*In some different worded hadiths its mentioned that the "mentioning of Allah" is to say:
"In the name of Allah."
upon entering the home and upon eating.
When a person enters his house and mentions the name of Allah at the time of entering it and upon eating the food, shaytan says (addressing himself and others with him): You have no place to spend the night and no evening meal; but when he enters without mentioning the name of Allah, the Satan says: You have found a place to spend the night, and when he does not mention the name of Allah upon eating food, he (shaytan) says: You have found a place to spend the night and evening meal.
*In some different worded hadiths its mentioned that the "mentioning of Allah" is to say:
"In the name of Allah."
upon entering the home and upon eating.
Transliteration
bismillaah
