The Shortest Surah

The 108th Surah (Chapter) of the Qur'aan is the shortest one of the Holy Book. The Qur'aan is not written by any human being; it is divine. The Arabic text is as under:

Yes, there are only 3 verses in this Surah! But there is an open challenge in the Qur'aan for any human being to author even a short Surah like this one.

And, so far as I know, this challenge has remained unmet.

Why? What is so unique about it that no human being can produce a composition of just 3 sentences like this one?

All three 3 sentences end with the same Arabic letter ر . But that can be done in any language.

The other notable feature about this Qur'aanic  Surah is that every Verse thereof is made up of 10 letters of the Arabic alphabet.

I wonder if this can be done by anybody, in any language! Can anyone make a meaningful composition of just 3 sentences, using just 10 letters of the alphabet in every sentence thereof?

I invite readers to let me know if the Surah is unique in any other way.

Mohammad Shafi