A new, rare sandstone pre-Angkorian Buddha image was discovered in 2018 outside the moat of the ancient city of Angkor Borei in Takeo province, southern Cambodia. The statue was broken across the base and the right foot; however, it has been recently restored by the National Museum of Cambodia in Phnom Penh. The Buddha stands in a rigid pose with his two hands probably originally held up symmetrically and performing the same gesture. This statue can be compared with other early standing Buddha images found in Cambodia and more distantly, to the west, from the Dvāravatī realm in central Thailand. It may date from the seventh or eighth century CE. The short inscription on the pedestal has been inventoried as K. 1455. It was read by co-author Dominic Goodall and is currently under review for publication. The inscription consists of a label and two stanzas: 1) a dedication in Sanskrit; and 2) a verse composed in Middle Indo-Aryan (so-called Prakrit). This second versified stanza consists of a summary of the “Four Truths of the Noble Ones”. Similar inscriptions have been found in the Mekong Delta and Thailand. They bring to the fore the important historical question of the presence of certain Buddhist lineages or nikāyas, such as the Saṁmitīyas and the Theriyas, in mainland Southeast Asia during the seventh‒eighth century CE.