Full Idea
Explanation has to do with understanding; just citing a cause would not offer an adequate understanding, unless it was accompanied by the citation of a law that connects the two events.
Gist of Idea
Just citing a cause does not enable us to understand an event; we also need a relevant law
Source
Stathis Psillos (Causation and Explanation [2002], §8.2)
Book Reference
Psillos,Stathis: 'Causation and Explanation' [Acumen 2002], p.218
A Reaction
It is surely undeniable that being told the cause but not the law will increase our understanding. Understanding and explanation come in degrees. Full understanding would require an explanation of the law, and beyond. Any relevant truth helps.