俱舍論記 9.155

9.155

「云何未來至說名有為」者，反難外人。已有為作名曰有為。云何未來異熟未已作法，得同過、現說名有為？然梵本呼有為聲中含已義，具足應言已有為。

Regarding "How can the future [...] be called conditioned?": this counters the opponent. Having already been actively made is called conditioned (saṃskṛta). How can dharmas of future fruition that have not yet been made be called conditioned, just like the past and present? Indeed, the Sanskrit term for "conditioned" contains the sense of "already [done]"; in full, it should be said "already made together."