Dual Relative Nouns Change with Case

Relative Nouns and Their Completing Clauses

Gender
Nominative
Accusative / genitive

masculine dual
الَّذَانِ
الَّذَيْنِ

feminine dual
اللَّتَانِ
اللَّتَيْنِ

Choose the dual form from the case required by its position in the sentence.