Salaamun Alaykum.
If you remember that Ayah 4:136 gives evidence that there are only “2 Kutub” (not Kitabaan, as the Arabs would have expected)
I found another example:
(2:120) وَلَن تَرْضَىٰ عَنكَ ٱلْيَهُودُ وَلَا ٱلنَّصَـٰرَىٰ حَتَّىٰ تَتَّبِعَ مِلَّتَهُمْ ۗ
Normally it would be مِلَّتَهُمَا to indicate two people or groups. But Allah chose the plural suffix هُمْ instead of the dual suffix هُمَا
Another evidence that Allah sometimes uses the plural to indicate 2! Alhamdulillah!
Salaamun Alaykum.
Salaamun ʿAlaykum.
Here’s a heavier example,
If you really want to see how the Lisaan completely ignores the Lughah dual system, look at 2:229–230, the whole ruling about divorce. The entire law literally revolves around two divorces — that’s the core of the ruling. And if the Qur’an were following Arab grammar, this is the exact place where you must see the dual forms. Arabs would expect strict dual markers everywhere because the number “2” is the legal pivot. But Allah doesn’t use the dual at all. He uses forms that sit inside plural-capable morphology, even though the situation is only “two.” The Lisaan is treating the stages of divorce as categories, not as a numeric pair.
That’s why this example is much heavier: even where counting “2” is legally crucial, the Qur’an still refuses the Lughah dual and uses the broader semantic frame. It proves the point clearly — in Lisaan, plural space can contain 2, and the Qur’an does not bow to Arab grammatical expectations, even in legal contexts.
Alhamdulillah.