From the provided text, describe the final, violent confrontation between the two brothers that led to their rebirth as goats.

The text in Chapter 46 provides a grim account of the brothers' final moments. Their enmity, fueled by greed and false pride, had erased all memory of their brotherhood and love. In a fit of rage, they fought like enemies. The confrontation was brutal and swift: one brother struck the other on the head with a staff, bringing him down. In retaliation, the downed brother used an axe to kill his own sibling immediately. Following this mutual act of murder, both fell 'mangled and drenched in blood' and died shortly after, leading to their karmic consequence of being reborn into the goat species to suffer for their deeds.