Surah Al-An'am 6:143

ثَمَـٰنِيَةَ أَزْوَٰجٍ ۖ مِّنَ ٱلضَّأْنِ ٱثْنَيْنِ وَمِنَ ٱلْمَعْزِ ٱثْنَيْنِ ۗ قُلْ ءَآلذَّكَرَيْنِ حَرَّمَ أَمِ ٱلْأُنثَيَيْنِ أَمَّا ٱشْتَمَلَتْ عَلَيْهِ أَرْحَامُ ٱلْأُنثَيَيْنِ ۖ نَبِّـُٔونِى بِعِلْمٍ إِن كُنتُمْ صَـٰدِقِينَ

[They are] eight mates - of the sheep, two and of the goats, two. Say, "Is it the two males He has forbidden or the two females or that which the wombs of the two females contain? Inform me with knowledge, if you should be truthful."

Translation: Saheeh International

Tafsir

Eight pairs types thamāniyata azwājin substitutes for hamūlatan wa-farshan ‘some for burdens and some for light support’ two of sheep a male and a female; and of goats read ma‘az or ma‘z two. …

Excerpt from Tafsir al-Jalalayn, commentary on 6:143, via Quran.com. The reader has the full commentary and 9 more tafsirs.