Rashi on Numbers 22:39/רש"י על במדבר כ״ב:ל״ט

1קרית חצות — a city (קריה) full of streets (חצות), — men and women and children thronging the streets, as much as to say: Look and have pity that these should not be exterminated (Midrash Tanchuma, Balak 11).