“I once asked abu ‘Abd Allah (a.s.), about a man whose Salah (prayer) is discontinued because of something moving in front of him. He (the Imam) said, ‘Things do not discontinue Salah (prayer) of the believer, but guard it as much as you can.’” “In the narration of ibn Muskan from abu Basir from abu ‘Abd Allah (a.s.), it is said that things do not discontinue Salah (prayer), not a dog, donkey and woman, but place a barrier in front of yourselves, of the size of one yard high above ground; it is enough of a barrier.’” Al-Kulayni has said that it is better to establish a barrier with something, which you can place in front of yourselves and those passing-by. If you did not do so, it is not harmful because the one for whom one performs Salah (prayer) is closer than passing-by one, but it is a matter of the discipline of Salah (prayer) and its respect.