«ثُمَّ خَطَفَتِ الدِّرْهَمَ خَطْفَةَ الْبَاشِقِ»
Then she snatched the dirham like a hawk swooping upon its prey.
Khaṭf means snatching swiftly, and bāshiq denotes a hunting bird. After disclosing the information, the attendant immediately takes the payment. The expression turns a quick hand movement into an image of a bird striking its prey.