There are more serious moral problems that are present in our society and among them is the filthiest act of bestiality. In today's world, it is a growing evil and a great problem. The act did not occur at the time of the Prophet (peace be upon him) and there is no evidence about any such happenings in that time. However, the act is so evil that there is no doubt that it is included in major sins.
The sin was not committed by anyone (among shahaba) during the best time of the world. That generation was uniquely ideal, even the sinners among them. Read the story of Maa‘iz and the Ghaamidi woman who committed zina, then when they came to their senses after committing that sin, they were not content until they came to the Prophet (blessings and peace of Allah be upon him) and insisted that he should purify them by carrying out the hard punishment on them. May Allah be pleased with them.
Allah protected that generation by his mercy from the most of sins and even sins such as homosexuality, lesbianism and bestiality. Such acts were definitely not done by the companions of the Messenger of Allah (blessings and peace of Allah be upon him). There is no known report of anyone being brought to the Prophet (blessings and peace of Allah be upon him) because of having committed sins such as these.
Ibn al-Qayyim (may Allah have mercy on him) said:
There is no proven report from the Prophet (blessings and peace of Allah be upon him) to say that he passed judgment concerning any case of homosexuality, because this was not known among the Arabs, and no such case was brought to him (blessings and peace of Allah be upon him). But it is proven that he said: “Execute the one who does it and the one to whom it is done.” This was narrated by the authors of the four Sunans, and its isnaad is saheeh. At-Tirmidhi said: It is a hasan hadeeth. End quote from Zaad al-Ma‘aad (5/36-37)
Similarly, the evil of bestiality was not known during that time and no such person was presented to the prophet (peace be upon him) for having done such an act. The hadith that mention this does not mean it was committed during that time, however, it was mentioned for sharing purposes.
It was narrated that Ibn ‘Abbaas (may Allah be pleased with him) said: The Messenger of Allah (blessings and peace of Allah be upon him) said: “If you find that someone has had intercourse with an animal, kill him and kill the animal too.” Narrated by Abu Dawood (4464) and at-Tirmidhi (1455) – this version was narrated by him. The scholars differed as to the soundness of this report; some of them classed it as saheeh and others classed it as da‘eef.
Daaef or saheeh, in both cases it is not acceptable behavior of Muslim.
And even if we assume that it is saheeh, nothing in this hadith suggest that it occurred at the time of the Prophet(peace be upon him) or a particular person did it. Moreover, The hadeeth says “If you find that someone has…” Here the Messenger (blessings and peace of Allah be upon him) was stating and affirming the shar‘i ruling, and it is addressed to the entire ummah.
It is a filthy act and is not accepted in Islam. Although no such case happened during the time of prophet it doesn't mean it is not evil and he has mentioned it for the shari purpose. A believer must refrain from such acts and warn people against it.
May Allah help us. May he keep our youth from such evil. May he help our brothers and sisters in their eman.