Citation Style that differentiates between first and subsequent mentions of a 3 - 5 author source

Regarding Harvard-like (Author, Date) in text citation.

The requirments state that when I cite a source that has 3 to 5 authors, I must mention each author by name separated by comma the first time I reference their text, the last author with an "&" sign before his / her name.

In subsequent mentions I'm supposed to mention only the first author with et al.

Is there an CSL style that does this? Is CSL capable of differentiating between first and subsequent mentions of the same multi author source?
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