Exodus 12:35-38
12:35 Now the Israelites had done as Moses told them – they had requested from the Egyptians silver and gold items and clothing.
12:36 The Lord gave the people favor in the sight of the Egyptians, and they gave them whatever they wanted, and so they plundered Egypt.
12:37 The Israelites journeyed from Rameses to Sukkoth. There were about 600,000 men on foot, plus their dependants.
12:38 A mixed multitude also went up with them, and flocks and herds – a very large number of cattle.