Verse
विषयेन्द्रियसंयोगाद् यत्तदग्रेऽमृतोपमम् ।परिणामे विषमिव तत्सुखं राजसं स्मृतम् ॥
That which is born from the contact of the senses with their objects, which at first is as nectar, but in the end is like poison, that pleasure is accounted rajasic.
Gītā 18·38