When performing Salat, is a rug (or an equivalent) optional?
The reason why a rug is used for salat is: 1. To provide a context for prayer. 2. A matter of tradition (many Muslims use other things that rugs). 3. To provide a limited space for prayer. The Qur'an does not compel Muslims to use a rug, but it does compel cleanliness during prayer, so I would strongly recommend you using a rug or its equivalent if it is available to you.
