The senior regional source told Reuters that a warming of ties between Saudi Arabia and Iran, as well as a thaw in Arab states' isolation of Syria, had paved the way for the visit, Ednews reports citing Reuters,
The Syrian daily al-Watan, which is close to the government, reported that Raisi's visit would last two days and would be capped by a string of agreements, particularly on economic cooperation.
Iran has previously provided lines of credit to Damascus and imports phosphate from Syrian mines.