Mufassal: «القائد كالأسد في الشجاعة»
The leader is like a lion in courage.
Mujmal: «القائد كالأسد»
The leader is like a lion.
The terms and particle remain the same; only the explicit phrase naming courage is removed. In the second case, context determines the intended ground.
An implicit ground can allow a wider impression, though it should not automatically be taken as every conceivable shared trait.