Vaisesika Sūtra 4.1.11

संख्याः परिमाणानि पृथक्त्वं संयोगविभागौ परत्वापरत्वे कर्म च रूपिद्रव्यसमवायाच्चाक्षुषाणि ॥११॥

Number, magnitude, separateness, conjunction and disjunction, priority and posteriority, and motion are visible due to inherence of form in substance.