Which poem of Li Shangyin expresses people's yearning for reunion?

"When * * * cuts the candle at the west window, but talks about the rain at night" expresses people's good wishes for reunion.

Notes for Friends in the North on a Rainy Night Li Shangyin

When you ask about the return date, it's hard to say, evening rain, Manqiuchi.

When * * * cut the candle at the west window, but talk about the rain at night.