What Makes Clothes Impure
Offering Salah in clean clothes is from “ etiquettes of Salah ” and every rational muslim should wear decent and clean clothes while offering their prayers. However, it’s application can vary from situation to situation. There can be circumstances where one doesn’t have any option to change their dirty clothes, in that case, one has no option put to pray in those clothes. However, if such a change is possible, then they should offer salah in clean clothes.