Shiva Purana
इदन्तु मम कर्तव्यमिदन्नेति नियामिका ॥ नियतिस्स्याद्विभोश्शक्तिस्तदाक्षेपात्पतेत्पशुः ॥ ८३ ॥
Niyati means the factor that discriminates and ordains. “This shall be done and this shall not be done by me.” It is a Śakti of the lord. Sotting it at nought the individual soul falls.
english translation
idantu mama kartavyamidanneti niyAmikA ॥ niyatissyAdvibhozzaktistadAkSepAtpatetpazuH ॥ 83 ॥
hk transliteration by Sanscript