Peter uses this question to rebuke Ananias. AT: "you should not have let Satan fill your heart to lie ... land." (See: [[rc://en/ta/man/translate/figs-rquestion]])
Here the word "heart" is a metonym for the will and emotions. The phrase "Satan filled your heart" is a metaphor. Possible meanings of the metaphor are 1) "Satan completely controlled you" or 2) "Satan convinced you" (See: [[rc://en/ta/man/translate/figs-metonymy]] and [[rc://en/ta/man/translate/figs-metaphor]])
This implies that Ananias had told the apostles that he was giving the entire amount that he had received from selling his land. (See: [[rc://en/ta/man/translate/figs-explicit]])