What Is The Relation Of Miswak With Battle Of Qadisiya? Miswak Is A Wooden Piece Which Is To Be Used For Teeth Cleaning And Mostly Before Prayer,this Was Used In That Battle And Then Muslims Won That Battle

Maswak was not being done regularly at that time so the sahaba made sure they realive this sunnah properly and they performed it collectivelly. When infidals saw this they were terrified as they thought muslims were sharpening their teethe to eat them, which had a psychological fear upon them which ultimately resute into their defeat.
From religous point of view revival of this sunnah made allah almighty even happier and He showered muslims with His bounties and the muslims won the war