Wa alaikum salaam, No problem. You can ask them to clean yours first though the tools they use are the same and they will not change it the other day. As long as you don’t see impurity, such doubts are baseless.
Read moreWa alaikum salaam This urine probably is dry in about ten minutes. Therefore, it has no effect on your dry clothes.
Read moreWa aalikum salam As long as there are no traces of impurities on it, it is clean.
Read moreWa alaikum salaam, Yes, they are as you must wash the area up till the ears.
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