وَعَنْ اِبْنِ عَبَّاسٍ رَضِيَ اَللَّهُ عَنْهُمَا;
أَنَّ اَلنَّبِيَّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ: «مَنْ وَجَدْتُمُوهُ يَعْمَلُ عَمَلَ قَوْمِ لُوطٍ، فَاقْتُلُوا اَلْفَاعِلَ وَالْمَفْعُولَ بِهِ، وَمَنْ وَجَدْتُمُوهُ وَقَعَ عَلَى بَهِيمَةٍ، فَاقْتُلُوهُ وَاقْتُلُوا اَلْبَهِيمَةَ»
“Whoever you find doing as the people of Lot did (i.e. homosexuality), kill the one who does it and the one to whom it is done, and if you find anyone having sexual intercourse with animal, kill him and kill the animal.” Related by Ahmad and the four Imams with a trustworthy chain of narrators.
Bulugh al-Maram 1403, Book 10, Hudud, Hadith 12. 1 min read