8 Anyone who failed to appear within three days would forfeit all his property, in accordance with the decision of the officials and elders, and would himself be expelled from the assembly of the exiles.

Read Ezra 10:8 Using Other Translations

And that whosoever would not come within three days, according to the counsel of the princes and the elders, all his substance should be forfeited, and himself separated from the congregation of those that had been carried away.
and that if anyone did not come within three days, by order of the officials and the elders all his property should be forfeited, and he himself banned from the congregation of the exiles.
Those who failed to come within three days would, if the leaders and elders so decided, forfeit all their property and be expelled from the assembly of the exiles.