Mahabharata 6.40.38

विषयेन्द्रियसंयोगाद्यत्तदग्रेऽमृतोपमम्परिणामे विषमिव तत्सुखं राजसं स्मृतम्

viṣayendriyasaṃyogādyattadagre'mṛtopamampariṇāme viṣamiva tatsukhaṃ rājasaṃ smṛtam

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