«وأما التلميح فهو أن يشار إلى قصة أو شعر من غير ذكره»
Talmīḥ is an indication of a story or poem without reproducing it.
Talmīḥ alludes to a recognized story, historical event or poem without reproducing the entire passage. The reader completes the reference from prior knowledge.
A good allusion gives enough indication for the relevant narrative or earlier poem to be recognized. A reference so vague that no particular background can be identified will have little of the desired effect.