《太平广记·卷三百六十四·妖怪六》
但是要等到了夜晚我才能来成全好事。说完，女子汲水离去。这天晚上，她果然来了。
然候夜而赴佳命。言讫，女子汲水而去，是夕果至。
However, I can only come to fulfill this good thing when it is night. After speaking, the young woman fetched water and left. That night, she actually came.