If someone immerses while holding an impure creature, does he become pure and immediately impure again, or was he never purified at all?

This source-based Torah study examines the question: If someone immerses while holding an impure creature, does he become pure and immediately impure again, or was he never purified at all? The canonical Hebrew discussion develops the issue through the weekly Torah portion and the sources cited there, preserving the distinctions, tensions, and practical implications of the original text. This localized discovery layer does not add any new halakhic, medical, legal, scientific, historical, theological, or empirical ruling or claim beyond the canonical Hebrew source.