Hojat-ol-Islam Al-Tuwairjawi died Sunday in a Kuwaiti hospital at the age of 73 after a long illness.
In the message, the Astan described him as someone who spent his life in serving the Ahl-ul-Bayt (AS).
Iraqi scholars and personalities have also offered condolences to the family of al-Tuwairjawi, praying for the departed soul to rest in peace.
Born in 1947 in the holy city of Najaf, al-Tuwairjawi traveled to many countries, including Syria, Bahrain, Lebanon and Kuwait, for preaching and reciting the Quran.