It is narrated from Hazrat Anas (may Allah be pleased with him) that once the Prophet (peace and blessings be upon him) was standing and offering prayer in his house when a man came and began to look inside through a hole. The Prophet (peace and blessings be upon him) took an arrow from his quiver and pointed it towards him, so the man moved back.
Hadith Referenceمسند احمد / مسند المكثرين من الصحابة / 12985