make it short answer

Mohammad owns a furniture store. One day he asked Saeed, the cleaner, to look after the store for him for 2 hours. In Mohammad's absence, Saeed sold a couch (sofa) (worth 4000 AED) for 3000 AED only At first Mohammad approved the sale, but later he toid Saeed that he will deduct the remaining 1000 AED from Saeed's salary. Can Mohammad do that? Explain your answer. (CLOH5)