Rasarnavasudhakara 2.529.p6

2.529.p6

na tāvat tiraścāṃ vibhāvatam upapadyate | śṛṅgāre hi samujjvalasya śucino darśanīyasyaiva vastuno muninā vibhāvatvenāmnātam | tiraścam udvartana-majjanākalpa-racanādy-abhāvād ujjvala-śuci-darśanīyatvānām asambhāvanā prasiddhaiva |

[Refutation:] First of all, the status of being a determinant does not hold in the case of animals. For in the erotic sentiment, only an object that is bright, clean, and attractive was handed down as a determinant by the Sage. Because animals lack unguents, bathing, the arrangement of ornaments, and the like, the impossibility of their being bright, clean, and attractive is well known.