Vaisesika Sūtra 1.1.6

रूपरसगन्धस्पर्शाः संख्याः परिमाणानि पृथक्त्वं संयोगविभागौ परत्वाऽपरत्वे बुद्धयः सुखदुःखे इच्छाद्वेषौ प्रयत्नाश्च गुणाः ॥६॥

The form, taste, smell, touch, hearing, their count in multiples, their effects individually, in conjunction, and in disjunction, their material existence and beyond, understanding resulting from it, consequent pleasure and pain experienced, resulting wish and hatred, arising of drive are the gunas, i.e. qualities.