If a man fears any interference in prayer,by persons crossing in front of him,he should place some object before him.This object is called "Sutra". Musa Bin Talha(R.A) reports from his father:"We offered prayer and often animals passed in front of us.When we mentioned this thing to Allah's Messenger.He said,"If you place something like a wood or camel's saddle in front of you, nothing will disturb your prayer."(Ibn e Majah) #Sutra
