Mahabharata 14.50.32

तस्मात्कर्मसु निःस्नेहा ये केचित्पारदर्शिनःविद्यामयोऽयं पुरुषो न तु कर्ममयः स्मृतः

tasmātkarmasu niḥsnehā ye kecitpāradarśinaḥvidyāmayo'yaṃ puruṣo na tu karmamayaḥ smṛtaḥ

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