Vaisesika Sūtra 4.2.02

प्रत्यक्षाप्रत्यक्षाणां संयोगस्याप्रत्यक्षत्वात् पञ्चात्मकं न विद्यते ॥२॥

pratyakṣāpratyakṣāṇāṁ saṁyogasya apratyakṣatvāt pañcātmakaṁ na vidyate ॥2॥

[प्रत्यक्ष-अप्रत्यक्षाणां (pratyakṣa-apratyakṣāṇāṁ) - of visible and invisible (elements); संयोगस्य (saṁyogasya) - of conjunction; अप्रत्यक्षत्वात् (apratyakṣatvāt) - due to non-perceptibility; पञ्चात्मकं (pañcātmakaṁ) - ātman with five (elements); न (na) - not; विद्यते (vidyate) - come to light;]

The conjunction among visible and invisible is not perceptible, hence, ātman combined with five elements does not come to light.