Majjhima Nikaya (Coleção dos Discursos Médios) 5:68
SUJATOsappasirūpamā kāmā vuttā mayā, bahudukkhā bahupāyāsā, ādīnavo ettha bhiyyo.
I’ve said that sensual pleasures give little gratification and much suffering and distress, and they are all the more full of drawbacks.