Suratu An Nur, ayat 31, I came across the opinion that the letter raa here (al irbati) should be read with tafkheem. Can you shed any light on this?

Question
Assalaamu 'Alaikum wa Rahmatullahi wa Barakatuh

Suratu An Nur, ayat 31 in the phrase,  ;  I came across the opinion that the letter raa here (al irbati) should be read with tafkheem however it doesn't come under any of the rules of tafkheem of raa. This person was taught to read the raa with tafkheem by his Shaykh who studied in Syria. It was stated that this is something that not many people know/very rare/shaath.

I have had a cursory glance in a book which lists the 52 ways for Hafs 'an 'Asim (Fathur Rahman Fi Tayseer Turuq Hafs bin Sulaiman) and can't find any such reference in the normal list of possible changes to words which need to be adhered to in order to conform to the tariq.

Can you shed any light on this?
Jazakallahu khairan.
Wassalaamu 'Alaikum wa Rahmatullahi wa Barakatuh

Answer
Wa alaikum assalaam wa rahmatullahi wa barakatuh,
All readers read the word with tarqeeq of the ra’. This is because there is a hamzah qata’ before it with a fixed kasrah, not a temporary or conditional kasrah on a hamzah al-wasl. There is no difference in any of the 52 ways for Hafs ‘an ‘Aasim in this word, nor in the ten qira’aat, even the four shaadh qira’aat.  All readers in all authentic ways, even the four ways that are shaadh and not mutawaatir read this word with tarqeeq of the ra’.

Wa iyyaakum wa-l-muslimeen.
Wa alaikum assalaam wa rahmatullahi wa barakatuh.