Exodus 2:3, 4, 5

When she could hide him no longer, she took for him a basket made of bulrushes and daubed it with bitumen and pitch. She put the child in it and placed it among the reeds by the river bank.

And his sister stood at a distance to know what would be done to him.

Now the daughter of Pharaoh came down to bathe at the river, while her young women walked beside the river. She saw the basket among the reeds and sent her servant woman, and she took it.