Devibhagavatapurana 7.36.15

7.36.15

etādṛganubhavo yasya sa kṛtārtho narottamaḥ |
brahmabhūtaḥ prasannātmā na śocati na kāṅkṣati ||

The man who realises thus is satisfied and has all that he wants to do and is considered as the best. He becomes Brahman and his Self is pleased and he neither wants anything nor becomes sorry. O King! Fear comes from the idea of a second; where there is no second, fear does not exist. No danger then arises for him to be separated from Me. Nor I also get separated from him.