Thank you @Gaurav, @Alexander Alcala, @Mohamed Seidam for the advices.
Even im not comfortable with driving with a tube tyre. I have heard enough horror stories of tyre failure so better to be safe than sorry.
currently Juma al majid (dealer) does not have stock, so waiting for new stock to arrive in couple of days.
Sorry @Gaurav i forgot to take a photo. it was very small and sharp metal about 0.5mm in diameter.
any way even my current spare is tubeless, its old but good working condition. so damaged tyre is no use will scrap it.