Vaisesika Sūtras
Vaisesika Sūtra 2.1.25
कार्यान्तराप्रादुर्भावाच्च शब्दः स्पर्शवतमगुणः ॥२५॥
Difference in the effect is due to the absence of the manifestation of sound and touch, because of the absence of their qualities.