Which Qira’ah of the Quran is preserved in the heavenly tablet?

Assalamu alikum.
It is said that the Quran is preserved in the heavenly tablet. But, there are many Qiraat of the Quran. Which one is preserved in the heavenly tablet? I got this question from a Christian, and I am unable to answer it.

The Answer

Wa alikom asslam,
Alhamdulilah

All of them are preserved in the heavenly tablet, because it is all Quran.

Allah knows best.
Asslamo alikom