Imam Baqir (a.s) said: “God's Prophet (a.s) was sitting in his house with his cane leaning on the wall. He noticed someone looking at him. He said: “O' you the one who is looking at me! If you stay where you are I will come and take out your eyes using this cane.” They asked Imam Baqir (a.s): “How did the Prophet realize that someone was looking at him while he was sitting down?” Imam Baqir (a.s) said: “From the gaps inside the wall woven from palm.”