DOHA, FEB 28, SPA -- THE CUSTODIAN OF THE TWO HOLY MOSQUES KING ABDULLAH BIN ABDULAZIZ HAS SENT A MESSAGE TO QATARI EMIR SHEIKH HAMAD BIN KHALIFA AL-THANI CONTAINING AN INVITATION TO ATTEND THE 19TH ARAB SUMMIT, DUE TO BE HELD IN RIYADH NEXT MONTH. THE MESSAGE WAS DELIVERED TO AL-THANI BY MEMBER OF THE CABINET FOR THE SHOURA AFFAIRS DR SAUD AL-MAT'HAMI DURING A MEETING HERE TODAY.--SPA www.spa.gov.sa/428964