Shaikh Abdul-Muhsin Al-Abbaad was asked the following question:

Question:

What is the ruling on specifying a prayer mat for the Imam of the masjid in addition to the carpet of the masjid?

Answer:

There is no need to increase upon the carpet of the masjid. Not for the Imam or other than him.

[Sharh Saheeh al-Bukhari no. 59 Side A]

Translated by

Faisal Ibn Abdul Qaadir Ibn Hassan
Abu Sulaymaan