If a reader wants to check the original source of information used in paragraph which phrase from should writer most likely hyperlink?

The writer should most likely hyperlink the phrase that directly names the source material (e.g., a specific study, book, article, website, or report). For example, instead of "A recent study showed...", the writer could write "A recent study by Smith et al. (2023) showed...", and hyperlink "Smith et al. (2023)".