Likutei Sichos, Vol 27, Tazria 3, Rabbi Chaim Wolosow
https://www.torahrecordings.com/likutei-sichos/027/007_003 The Rebbe analyzes Rashi’s view that a bald area is no longer a place of hair and is judged as skin, contrasting the Rambam who sees nesek as a distinct category. The sicha reveals both halachic precision and a deeper lesson on refining speech and inner character.