كتاب الاسْتِئْذَانُ
43
Asking permission to enter
(495)
Chapter: Asking permission without looking
(495)
بَابُ الاسْتِئْذَانُ مِنْ أَجْلِ النَّظَرِ
The Prophet, may Allah bless him and grant him peace, said, "The ear is put in the place of the eye."

وَقَالَ النَّبِيُّ صلى الله عليه وسلم‏:‏ إِنَّمَا جُعِلَ الإِذْنُ مِنْ أَجْلِ الْبَصَرِ‏.‏
GradeSahih (Al-Albani)  صـحـيـح   (الألباني) حكم     :
Reference : Al-Adab Al-Mufrad 1071
In-book reference : Book 43, Hadith 21
English translation : Book 43, Hadith 1071