صحيح الادب المفرد
Sahih al-Adab al-Mufrad
Part Four: Ahadith 751 to 999
باب النظر فى الدور
Chapter on Looking into Houses
Hadith Number: 834
834/1090 (صحيح الإسناد) عن مسلم بن نذير قال: استاذن رجل على حذيفة، فاطلع، وقال: ادخل؟ قال حذيفة:"اما عينك فقد دخلت، واما إستك فلم تدخل".
834/1090 (authentic chain) from Muslim ibn Nadhir who said: A man sought permission to enter upon Hudhayfah, so he peeked in and said: "Shall I enter?" Hudhayfah said: "As for your eye, it has entered, but as for your backside, it has not entered."