じまったそうだ
仕舞ったそうだ
jimatta sōda

Godan Verb (u)
Evidential Auxiliary

Expresses hearsay about a past event ("I heard that...") of しまう

1. It is said to be finished.; It is said to be over.; They say it's done.

Past/Perfective
Hearsay Evidence
Usually Written in Kana