Bhagavad Gita 15.7

ममैवांशो जीवलोके जीवभूत: सनातन: |
मन:स्थानिन्द्रियाणि प्रकृतिस्थानि कर्षति

Translation

The embodied souls in this material world are My eternal fragmental parts. But bound by material nature, they are struggling with the six senses including the mind.