Ala. Code § 12-21-139: Disclosure of Evidence Sought by Objected-To Question.

In the examination of witnesses and the introduction of evidence, it shall not be necessary to state or disclose to the court the substance of the anticipated answer of the witness or of the evidence sought to be introduced by the question in order to put the court in error in its ruling on objection to the question unless the court requests that counsel disclose to the court the evidence sought by the question.