His name was mentioned in the series of Srivijayan inscriptions dated from the late 7th century CE dubbed the "Siddhayatra inscriptions", describing his sacred journey to acquire blessings and also to conquer neighboring areas.

[2] The king mentioned in Yijing's report was later linked to the king mentioned in the oldest Srivijayan inscription (dated 682 CE), the Kedukan Bukit inscription discovered in Palembang.

[6][7][8] The Kedukan Bukit inscription dated 605 saka (683 CE),[1]: 82–83  mentioned a king titled Dapunta Hyang who performed a Siddhayatra (sacred journey) by the boat.

He departed from Minanga Tamwan accompanied by 20,000 soldiers heading to Matajap and conquering several areas.

From all of these inscriptions, it was concluded that Dapunta Hyang established the Srivijayan empire after defeating his enemies in Jambi, Palembang, Southern Lampung, and Bangka island,[9] and he even went further to launch a military campaign against Bhumi Java that probably contributed to the decline of the Tarumanagara kingdom in West Java.