Mīmāmsa Sūtras
Mīmāmsa Sūtra 01.01.13
सतः परमदर्शनं विषयानागमात् ॥१-१-१३॥
Supreme vision arises from the existent by non-contact (non-attachment) with sense objects. / The existent (sound) is not perceived at other times, as they are not perceived by the senses.