たくわえたそうだ
takuwaeta sōda

Ichidan Verb
Evidential Auxiliary

Expresses hearsay about a past event ("I heard that...") of 蓄える

1. It is said that [someone] has accumulated.; It is said that [something] has been saved up.; It is said that [someone] has hoarded.

Past/Perfective
Hearsay Evidence