Vaisesika Sūtra 1.1.23

द्रव्याणां द्रव्यं कार्यं सामान्यम् ॥२३॥

dravyāṇāṁ dravyaṁ kāryaṁ sāmānyam ॥23॥

[द्रव्याणाम् (dravyāṇām) - of substances; द्रव्यम् (dravyaṁ) - substance; कार्यम् (kāryam) - the effect; सामान्यम् (sāmānyam) - is common;]

Effect of substance is the common generality among the substances.