Bhagavatapurana 5.5.8

5.5.8

puṃsaḥ striyā mithunī-bhāvam etaṃ tayor mitho hṛdaya-granthim āhuḥ /
ato gṛha-kṣetra-sutāpta-vittair janasya moho 'yam ahaṃ mameti //

8. The mutual relation of man to woman is said to form a knot in the heart to each of them reciprocally; hence in respect of the house, fields, children, relations, and wealth, this delusion of 'I', "This is mine" exists (enhanced) on the part of the world (on every being that is born with a body).