رَزَقَنِيَ اللَّهُ لِقَاءَكَ
May Allah grant me the pleasure of meeting you.
Before any meeting has occurred, the past form expresses a desire for a future outcome by framing it as achieved. It can therefore be studied as both a temporal departure and a declarative form serving a prayer-like purpose.
One sentence can illustrate more than one rhetorical feature, but each interpretation still requires its own contextual support.