Hadith 1557

'Imran bin Husain (May Allah be pleased with him) said: We were with the Messenger of Allah (PBUH) on a journey and there was a woman from the Ansar riding a she-camel. She abused and invoked curse upon it. The Messenger of Allah (PBUH) heard it and said, "Off load the she- camel and set it free because it has been cursed."

[Muslim].