Sahih Muslim Book 24, Hadith Number 5255.

Chapter : Angels do not enter a house in which there is a dog or a picture.

‘Aisha reported: We had a curtain with us which had portraits of birds upon it. Whenever a visitor came, he found them in front of him. Thereupon Allah’s Messenger (may peace be upon him) said to me: Change them, for whenever I enter the room) I see them and it brings to my mind (the pleasures) of worldly life. She said: We had with us a sheet which had silk badges upon it and we used to wear it. This hadith has been transmitted on the authority of Ibn Muthanna but with this addition: ‘Allah’s Messenger (may peace be upon him) did not command us to tear that.”