And O my people, this is the she-camel of Allāh - [she is] to you a sign. So let her feed upon Allāh's earth and do not touch her with harm, or you will be taken by an impending punishment."
Ṣāliḥ told his people about a particular camel of Allah’s which was a clear miracle for them, and a sign of the truth of what he said. He told them to leave her to graze in Allah’s land and not to harm her in any way or a punishment would come to them near to the time that they harmed her.