(506) بَابُ النَّظَرِ فِي الدُّورِ
Thawban, the mawla of the Messenger of Allah, may Allah blesshim and grant him peace, related that the Prophet, may Allah bless himand grant him peace, said, "It is not lawful for a Muslim man to look insidea house until he has been given permission. If he does so, he has entered.He should not act as the imam of a people and then single himself out forsupplication to the exclusion of others. He should not pray while he needsto urinate until he has relieved himself."
Reference: Al-Adab Al-Mufrad 1093
In-book reference: Book 43, Hadith 43
English translation: Book 43, Hadith 1093