Prayer: Is It Makrūh to Pray on a Mat with Images or an Engraved Turbah?

Practical Laws of Islam as per the teachings of Imam Khamenei

Prayer: Is It Makrūh to Pray on a Mat with Images or an Engraved Turbah?

English:

Question #375:

Is it makrūh to perform prayer on a prayer mat that has pictures on it or on clay [turbah] with engravings?

Answer #375:

It is not problematic in itself but if it provides an opportunity for those who always accuse Shī‘ah, it will be obligatory to refrain from manufacturing such things and performing prayers on them. Also, if it entails absent mindedness and loss of concentration during prayer, it will be makrūh.

-Imam Khamenei, Practical Laws of Islam, Importance and Conditions of Prayer