Anicca Sutta [SN 22.137, PTS 3.178]

2.

The Discourse on Impermanence

137. At Sāvatthī. "Whatever, monks, is impermanent; therein your desire is to be abandoned. And what, monks, is impermanent? Materiality, monks, is impermanent; therein your desire is to be abandoned. Feeling is impermanent, etc. perception... activities... consciousness is impermanent; therein your desire is to be abandoned. Whatever, monks, is impermanent; therein your desire is to be abandoned." The second.