Vasumitra was a Buddhist monk of the Sarvastivada school who flourished in the 2nd century CE.
A native of Gandhāra, he presided over the 4th Buddhist council in Kashmir, administered by Kanishka I.
[1] Vasumitra put forward a thesis to defend the tenet of the Sarvastivada school that dharmas exist in the past and future as well as the present.
According to this argument, dharmas exist in a noumenal or latent state in the future until they attain a moment of causal efficacy (karitra) in the present.
Vasumitra's theory of temporality was accepted in preference to the views posited by other monks such as Dharmatrāta, Ghoṣa, and Buddhadeva.