Mahabharata 12.128.24

स्वधर्मानन्तरा वृत्तिर्यान्याननुपजीवतःवहतः प्रथमं कल्पमनुकल्पेन जीवनम्

svadharmānantarā vṛttiryānyānanupajīvataḥvahataḥ prathamaṃ kalpamanukalpena jīvanam

Our plain-language meaning of this verse is waiting for scholar review.