《太平广记·卷一百三十八·征应四》
一天曾在屋檐的下面睡觉，天将要下起大雨，有条彩虹在河中喝水，一会就钻进了弘实的口里。
常寐于檐下，天将大雨，有虹自河饮水，俄贯于弘实之口。
One day when he was sleeping under the eaves, it was about to rain heavily, and a rainbow was drinking water in the river, and then it got into Hongshi's mouth in a moment.
<s>[INST] Convert the following English text into Classical Chinese: One day when he was sleeping under the eaves, it was about to rain heavily, and a rainbow was drinking water in the river, and then it got into Hongshi's mouth in a moment. [/INST] 常寐于檐下，天将大雨，有虹自河饮水，俄贯于弘实之口。</s>
Convert the following English text into Classical Chinese: One day when he was sleeping under the eaves, it was about to rain heavily, and a rainbow was drinking water in the river, and then it got into Hongshi's mouth in a moment.
user
常寐于檐下，天将大雨，有虹自河饮水，俄贯于弘实之口。
assistant