May torn tzitzit strings be placed inside sacred books?

This source-based Torah study examines the question: May torn tzitzit strings be placed inside sacred books? 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.