Nyāya Sūtras 85.4

85.4

digādiṣu satsu jñānabhāvāt tāny api kāraṇānīti? akāraṇabhāve 'pi jñānotpattir digādisannidher avarjanīyatvāt --- yadāpy akāraṇaṃ digādīni jñānotpattau, tadāpi satsu digādiṣu jñānena bhavitavyam,

Are direction and the like also causes because cognition exists when direction and the like exist? Even in the absence of causality, the arising of cognition occurs because the presence of direction and the like is unavoidable. Even when direction and the like are not the cause in the arising of cognition, even then cognition must occur when direction and the like are present,