Why did Nadav and Avihu not marry if marriage and procreation are Torah obligations?

This source-based Torah study examines the question: Why did Nadav and Avihu not marry if marriage and procreation are Torah obligations? It follows the canonical Hebrew discussion through the weekly portion and the classical sources cited there, preserving the distinctions and review status of the original. This localized layer is for study and discovery only; it is not a practical halakhic, medical, legal, safety or pastoral ruling.