Sāṃkhya Kārikā verse 9

asat-akaraṇāt-upādãnagrahaṇāt sarva-saṃbhavā-abhāvāt |
śaktasya śakyakaraṇāt kāraṇabhāvāt-ca satkāryam ||

abhāva - non-appearance, non-existence