Mīmāmsa Sūtra 01.01.09
सत्त्वान्तरे यौगपद्यात् ॥१-१-९॥
sattvāntare yaugapadyāt ॥1-1-9॥
[सत्त्व-अन्तरे (sattva-antare) - in another entity; यौगपद्यात् (yaugapadyāt) - from simultaneity;]
(In another entity, from simultaneity.)
Due to (production of word or sound) simultaneity, in another entity.