Tā fù zài tā ěrbiān rúcǐ zhèbān de shuō le yì fān.
He whispered thus and so into her ear.
Tips
usage
如此这般 is often used when summarizing vague details - implying the speaker has already described the specifics (or is being deliberately vague). Similar to English "such and such" or "so and so" for events.