Ibrahim Nakha'i (may Allah have mercy on him) said: If a wife says, "Compare me to something," and the husband says, "You are like a deer or a pigeon," she says, "No, not until you say: You are free and divorced," and the husband says it, intending the freedom of a she-camel, even then divorce will take place.

This same narration has come from Ibrahim Nakha'i (may Allah have mercy on him), but there is no mention of the pigeon.

A case of this nature was presented before Sayyiduna Umar bin Khattab (may Allah be pleased with him), so he said to the husband: Treat her, and if you divorced her based on her statement, then she is still your wife.