Which is the correct emphatic form of الرَّجُلَانِ صَالِحَانِ?

Emphasis in Nominal Sentences

• إِنَّ الرَّجُلَيْنِ صَالِحَانِ
• إِنَّ الرَّجُلَانِ صَالِحَيْنِ
• إِنَّ الرَّجُلَيْنِ صَالِحَيْنِ