Yet send your hand and touch his bone and his flesh, and then you will see whether or not he blesses you to your face.
Other versions
King James Version
But put forth thine hand now, and touch his bone and his flesh, and he will curse thee to thy face.English Standard Version
But stretch out your hand and touch his bone and his flesh, and he will curse you to your face."New International Version
But stretch out your hand and strike his flesh and bones, and he will surely curse you to your face."