Salat ۱۱:Clothes Worn in Prayer ۷
۴,۰۶۷Rulings of Prayer
Dress code: Part Seven
In the previous episode we explained that the clothes of men while performing prayers must not be made of pure silk. But the last condition for men's clothes while performing prayers is that they must not be woven with gold either because wearing anything made of gold is impermissible for men and, since wearing such clothing while performing prayer constitutes an impermissible act, their prayer will also be void.
The same rule applies to yellow and white gold. But wearing anything made of platinum creates no problem [although it looks like white gold] and is permissible for men.
However, it is permissible for women to wear gold-woven clothes while performing prayer or otherwise on the condition that they are not being extravagant in the usage of these clothes. Besides clothes, wearing a gold watch or ring is also permissible for women while performing their prayers.
The prohibition of usage of gold for men is a general rule. In other words, all jewels, clothes, and accessories that are made of gold, whether a ring, glasses or any other similar things, are impermissible for men to wear and wearing them will invalidate their prayer. Even using gold crowns or dental caps for the front teeth impermissible for men and will invalidate their prayer because they are considered to be embellishments. The only exceptions to this rule are when they had no other choice but to use gold dental caps for their front teeth or if they only use gold crowns for their back teeth, something that is not considered to be a case of embellishment .
However, if a man was unaware of the fact that wearing pure silk, gold woven clothes, and the usage of gold accessories for impermissible for me or if they did now know that the usage of these will invalidate the prayer, his previous prayers are valid and do not need to be redone.