The ruling on praying in clothes stained with the blood of the sacrificial animal

Is the prayer valid in clothes stained with the blood of the sacrificial animal? And if one prays while there is blood on them, what is required of them? And does the blood of the slaughtered animal affect the ruling, or the blood that is in the meat?

Answer:
The clothes must be washed or replaced; one does not pray in them while they are stained with blood. Either he washes them or he replaces them. He washes them and delays the prayer until he has washed them. If he was aware of the blood and did so intentionally, he must repeat the prayer. But if he was forgetful or ignorant, he does not have to repeat it. However, if he was intentional, mindful, and negligent, he must repeat it.
The intended blood is the flowing blood that comes out of the slaughtered animal. As for the blood in the meat, it does not harm. The blood in the meat that remains in the organs and blood vessels is excused. The intended blood is the blood that comes out when the sacrificial animal is slaughtered.