As an example of this it may be said that a Shudra begets upon a woman belonging to the inost superior cast a son that is outside the pale of the four castes, by uniting with women belonging to the four principal castes, begets offspring that is further degraded in point of position.
यथा शूद्रोऽपि ब्राह्मण्यां जन्तुं बाह्यं प्रसूयते। एवं बाह्यतराद् बाह्यश्चातुर्वर्णात् प्रजायते॥