Kuwait Court of Cassation principle number 560

Delivery transferring the risk of loss of the thing sold to the purchaser occurs only by placing the thing sold at his disposal and after formally notifying him to take delivery. Formal notification shall be by official notice, registered letter with acknowledgment of receipt, or telegram in urgent cases. Such knowledge may not be established except by this means. The basis thereof. - Prescribing a specific means of knowledge of a particular disposition. Its necessary consequence. Knowledge thereof may not be established except by that means.