SB 10.56.33
adrstva nirgamam saureh
pravistasya bilam janah
pratiksya dvadasahani
duhkhitah sva-puram yayuh
Translation:
After Lord Sauri had entered the cave, the people of Dvaraka who had accompanied Him had waited twelve days without seeing Him come out again. Finally they had given up and returned to their city in great sorrow.