Book of Jasher 38:10
And they concealed themselves in the midst of the city of Chazar, for the city of Chazar was very large and extensive, and when all these armies had entered the city, the sons of Jacob ran after them to the city.
And they concealed themselves in the midst of the city of Chazar, for the city of Chazar was very large and extensive, and when all these armies had entered the city, the sons of Jacob ran after them to the city.