Ezekiel 37:18

And when the children of thy people shall speak unto thee, saying, Wilt thou not shew us what thou meanest by these?

Cross-reference

Ezekiel 12:9 records the same pattern of the people asking the prophet about a symbolic act.

Ezekiel 17:12 similarly has the people questioning the meaning of a prophetic symbol.

Ezekiel 24:19 has the exact same question from the people about the meaning of the prophet's symbolic action.