One of the famous trousers these days is the one known as jeans. It is made in non-Muslim countries. It has a…

One of the famous trousers these days is the one known as jeans. It is made in non-Muslim countries. It has a piece of leather used as a label. It is not known whether the leather is that of an animal slaughtered Islamically or non-Islamically-is it permissible to say salat with these trousers?