(56) بَابُ حَقِّ الْجَارِ
Al-Miqdad ibn al-Aswad reported that the Messenger of Allah, may Allahbless him and grant him peace, asked his Companions about fornication andthey said, "It is unlawful. Allah and His Messenger have made it unlawful."He said, "It is less serious for a man to fornicate with ten women than forhim to fornicate with his neighbour's wife." Then he asked them about stealing.They replied, "It is unlawful. Allah and His Messenger have made it unlawful."He said, "It is less serious for a man to steal from ten houses than it isfor him to steal from his neighbour's house."
Reference: Al-Adab Al-Mufrad 103
In-book reference: Book 6, Hadith 3
English translation: Book 6, Hadith 103