Case: One person treats medicine as independently creating recovery; another abandons both treatment and supplication in the name of destiny.
Allah creates healing, while treatment and prayer are legitimate means available to the servant. A cause’s existence does not make it the independent creator of its effect. Belief in decree does not remove the responsibility to take appropriate means.
A sound response joins reasonable effort, lawful supplication and trust in Allah—without treating the means as self-sufficient or as meaningless.