وَلَا يَعْتَكِفُ فَوْقَ ظَهْرِ الْمَسْجِدِ ، وَلَا فِي الْمَنَارِ " يَعْنِي الصَّوْمَعَةَ
Imam Malik, may Allah have mercy on him, said: It is not valid to observe i'tikaf on the roof or minaret of the mosque. Imam Malik, may Allah have mercy on him, said: Whoever intends to observe i'tikaf in a certain place should enter there before sunset, so that he may attain the entire night for which he intends to observe i'tikaf.