(See the question-answer section below.
(See the question-answer section below.) Similarly, it is permissible for them to wear natural silk that has been blended with other material like cotton, wool, nylon, etc. to the extent that the blended fabric is no longer considered pure silk. This law also applies, if there is uncertainty about the extent of blending [of pure silk and other material]. In such cases, it is also permissible to say salat in it. Based on obligatory precaution, men are not allowed to dress up in women’s clothes.
Based on obligatory precaution, Muslims are not allowed to dress up in clothes that are specifically known as the dress of non-Muslims. Questions and Answers Question: We Muslims in Europe buy shoes, belts and other clothing items made of leather which may come from animals killed in non-Islamic way. At times such items are imported from Muslim countries or obtained from Muslim abattoirs here (since there are a few Muslim abattoirs in the U.K. for example).
Can we consider such leather to be pure (tahir) in the probability that it might have been imported from Muslim countries or obtained from abattoirs adopting Islamic way of slaughtering, even if such a probability is very weak? Answer: If the probability is so weak that the opposite is more likely (for example, 2%), it should not even be considered. Otherwise [if the probability is high], there is no problem in considering it to be pure (tahir) . Allah knows the best.
Question: Jurists have decreed that it is forbidden [for men] to wear pure and natural silk. Is it permissible for a man to wear silk that is mixed with other material if that clothing item is a necktie [or the normal tie]? And is it forbidden for man to wear the necktie, if it is made of natural and pure silk? Answer: It is not forbidden to wear a tie, even if it is from pure silk because it is not [big enough material] to cover the private parts that must be covered [in prayer].
As for the item that is mixed with other material to the extent that it cannot be described as “pure silk,” it is permissible to wear, even if it [is big enough so that it] can cover the private parts that must be covered [in prayer]. Question: Even though some manufacturers write on their products that they have been made of natural silk, we doubt such a claim because of the goods very low price. Is it permissible for us to wear such an item and say salat in it?
Answer: With doubt [whether the silk is pure], it is permissible to wear and say salat in it.