With sad heart I have to admit that this is not jasmine. Thanks to Layman for the info, although I really want it to be a non-poisonous plant, but as a matter of fact Nerium Oleander L is a poisonous plant that could kill people.
Taken from a website, it says that “All parts of the oleander are poisonous, because of this, the plant should be restricted to locations where direct contact with people will be limited.”
For now I think it is still safe to have this Oleander in my garden. But perhaps in years to come I should consider removing it..huhu!