What is the expiation for one who commits bestiality? Please, I beg you, answer me.

Having intercourse with an animal is a grave sin and a hideous transgression. A curse upon its perpetrator has been mentioned in the Hadith. Scholars have differed regarding the prescribed punishment for one who has intercourse with an animal. Some were of the opinion that the hadd (prescribed punishment) for zina (unlawful sexual intercourse) should be applied to him. Others believed he should be given a ta'zir (discretionary punishment) that deters him. Still others said he should be killed outright. The preponderant view among the majority of scholars is that there is no hadd for him; rather, he should be given a ta'zir that deters him, basing their argument on the statement of Ibn Abbas: "Whoever has intercourse with an animal, there is no hadd upon him."