Relations between Indonesia and Iran are particularly important because both nations, as Muslim majority countries, are responsible for representing the Islamic world globally.
[3] Numerous Arabic sources noted the existence of a people called Sayabiga, which are already settled on the shores of the Persian Gulf before the rise of Islam.
In the reign of Caliph Abu Bakr (632–634) they formed a garrison at At-Khatt, in Al-Bahrain, and in 656 they are recorded as having been entrusted with the guarding of the treasury at Al-Basra.
It can be assumed that the contact between traders, mostly from Persia and the people of the Indonesia archipelago since the 7th century, resulted in a process of mutual influence in terms of the economic, social, cultural, religious, and especially language aspects between two society.
There is also an inscription of Persian poetry on the tomb of Fatimah bint Maimun in the village of Leran which dates from the 11th century during the era of Sultan Malik Saleh, the first Muslim ruler of Sumatra.
[6] In the 13th century many clerics from Persia who visited the kingdoms in the Indonesian archipelago brought Persian Islamic traditions and culture to Indonesia.
There is also the Tabut (Tabot) culture in Bengkulu and Tabuik in West Sumatra which is similar to the Persian Ashura celebrations.
According to one source from Iran, this easy diplomacy may be tenuous, due to loosely referenced incidents pertaining Rounds discourse.
However, experts have disputed whether this claim is real or falsified - there is little, shaky evidence that such an incident has occurred, and the reporting on such an event is not widespread.