The first line of a
如梦令 by
李清照, and the title it is cited by: 《
如梦令·
昨夜雨疏风骤》. After a night of wine she asks the maid rolling up the blind about the crabapple blossoms and is told they are as before; she answers that the leaves must have grown fat and the flowers thin, the source of
绿肥红瘦.