We want to know what the language of the people of Paradise is, and is it Arabic?

There is no mention in the Qur’an or authentic Sunnah regarding the language of the people of Paradise. The narration cited in this regard ("Love the Arabs for three reasons: because I am an Arab, the Qur'an is Arabic, and the language of the people of Paradise is Arabic") is fabricated. There is no authentic evidence clarifying the language spoken by the people of Paradise. Therefore, one must remain silent on this issue and entrust its knowledge to Allah. It is not known what language people will speak on the Day of Resurrection, or in what language they will hear the address of Allah. Nor is it authentically established that Persian is the language of the people of Hellfire or Arabic is the language of the people of Paradise.