Here is the Sanskrit anuvad, Hindi anuvad, and English translation of Sankhya Yoga Chapter 2, Verse 2.19.
Sanskrit
य एनं वेत्ति हन्तारं यश्चैनं मन्यते हतम् । उभौ तौ न विजानीतो नायं हन्ति न हन्यते ॥ २.१९ ॥
Hindi
जो इस आत्माको मारनेवाला समझता है तथा जो इसको मरा मानता है, वे दोनों ही नहीं जानते; क्योंकि यह आत्मा वास्तवमें न तो किसीको मारता है और न किसीके द्वारा मारा जाता है|
English
O ARJUNA, he who thinks of the Soul as a killer and he who thinks that Soul can be killed, is ignorant, because the Soul can never be killed nor can it kill anyone or anything.