مَالَ: fronted accusative object and muḍāf.
كَمْ: declarative and indeclinable, in the genitive position as muḍāf ilayh.
رَجُلٍ: genitive declarative tamyīz.
سَلَبْتَ: past verb and its tāʾ subject.
Kam has the same genitive syntactic position as in the prior example. The important difference is the declarative meaning and therefore the genitive tamyīz.