It actually refers to a passage in the bible from 1st Corinthians: Does not even nature itself teach you that if a man has long hair, it is dishonor to him, but if a woman has long hair, it is glory to her?
13  Yehlulelani nine: Kuyemukeleka yini kutsi umfati athantaze kuNkulunkulu angakambonyi enhloko? 14  Anikafundzi yini kutsi ngekwemvelo, kulihlazo kutsi indvodza ibe netinwele letindze; 15  kodvwa kutsi kuludvumo ngemfati kuba netinwele letindze?