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