Samyutta Nikaya 2:12
SUJATOjātipi dukkhā, jarāpi dukkhā, byādhipi dukkho, maraṇampi dukkhaṁ, appiyehi sampayogo dukkho, piyehi vippayogo dukkho, yampicchaṁ na labhati tampi dukkhaṁ—saṅkhittena pañcupādānakkhandhā dukkhā.
Rebirth is suffering; old age is suffering; illness is suffering; death is suffering; being coupled with the disliked is suffering; separation from the liked is suffering; not getting what you wish for is suffering. In brief, the five grasping aggregates are suffering.