Vaisesika Sūtra 2.1.6

सर्पिर्जतुमधूच्छिष्टानामग्निसंयोगाद् द्रवत्वमद्भिः सामान्यम् ॥६॥

The remains of clarified butter, wax, and honey - by union with fire, gains "liquid-ness", because of their generality, i.e. common property.