What is the ruling on the prayer of a butcher and his clothes which have blood on them, knowing that he is unable to change them at the time of every prayer?

Question:
First, the profession: I am a butcher. I pray, and there is blood on my clothes. Is my prayer permissible in these clothes, even though I am unable to change my clothes at the times of prayer? I ask you to please inform me and guide me. May Allah reward you with good.

Answer:
In the name of Allah, the Most Gracious, the Most Merciful. Praise be to Allah, Lord of the worlds. May Allah send prayers and blessings upon our Prophet Muhammad, and upon his family and all his Companions. It is known that it is required of the Muslim to be in a state of purity for prayer, in his garment, in his body, and in the place where he prays. Likewise, it is required of him to purify himself from minor and major ritual impurity.
As for what the questioner mentioned, that some blood from the slaughtered animal or animals gets on his clothes because he works as a butcher, and that prayer time comes upon him while he is in the middle of his work and he is unable to change his clothes, the answer to that is that there is a distinction regarding blood. As for the flowing blood that is shed, and if it comes out from the windpipe of the slaughtered animal when it is slaughtered, this is ritually impure. It is obligatory to wash whatever part of the garment or other item it has touched, and it is not permissible to pray in a garment that has been touched by this flowing blood that comes out from the windpipe of the slaughtered animal when it is slaughtered.
As for the blood that remains in the veins and in the meat, this is excused, and there is no harm in praying in a garment that has been touched by this blood, because it is not ritually impure. The blood that remains in the meat, and remains in the veins of the slaughtered animal after it is slaughtered, this is pure blood and does not affect the prayer. So the questioner should know the type of this blood. If it is of the first type, he must wash it and purify the garment from it for prayer. And if it is of the second type, which is the blood that remains in the meat and within the veins, then there is no harm in it. However, it is advised that this questioner should have a garment for prayer and keep it with him. So when he wants to pray, he takes off his work clothes and puts on the clean garment for prayer. And Allah the Exalted knows best. May Allah reward you with good, and may Allah do you good.