Is it permissible to pray in clothes stained with chicken impurity out of necessity, to avoid delaying the prayer?

The purity of the urine and droppings of an animal whose meat is permissible to eat is a matter of scholarly disagreement. The preponderant opinion is that they are pure. Therefore, chicken droppings and waste are pure, and it is permissible to pray in clothes soiled by them, although it is preferable to pray in clean clothes. However, if clothes are soiled with flowing blood, they are impure. If all clothes are impure, and it is possible to wash what covers the 'awrah before the time for prayer expires, then that is obligatory. Otherwise, one should pray in the impure garment, though some scholars hold that prayer must be repeated in such a case.