The Ruling on Ta'zir (Discretionary Punishment) for the Rabid Dog

Question:
Honorable Shaykh, we hear a lot about some people being rabid dogs, and that the ruling is that they are killed by way of ta'zir (discretionary punishment). What is ta'zir in the case of the rabid dog? I ask for detail regarding the rulings on ta'zir. Ta'zir is ta'zir. And in this, the derivation returns to...

Answer:
...the one in authority. The estimation of the expression returns to the one in authority. So if this criminal has prior convictions and has not been deterred by the punishments, then he is killed, because he has become like the rabid dog that attacks people; he has become like the lion and like the vicious dog. So he is killed; in the end, he is killed for his ferocity. If he does not stop except by being killed, then he is killed, and this killing is called ta'zir (discretionary punishment) in order to prevent others from committing this crime.