When the tree dies, the grass underneath withers

Similar sayings:

Customers are jade; merchandise is grass Customers are jade; merchandise is grass
The day your horse dies and your money’s lost, your relatives change to strangers The day your horse dies and your money’s lost, your relatives change to strangers
Grass fears the frost, frost fears the sun Grass fears the frost, frost fears the sun
When the tree falls, the shadow flies When the tree falls, the shadow flies
Looking for fish? Don’t climb a tree Looking for fish? Don’t climb a tree

Chinese sayings and proverbs