Mahler Third Symphony

[MasterTuner]

I believe Mahler uses a passage from a familiar piano work in part of his third supmhony but I can't think of what it is.  Does anyone know?

[xvimbi]

Perhaps, you are thinking of two of Mahler's own songs: "Ablösung im Sommer" ("Relief in Summer") and "Das himmlische Leben" ("Life in Heaven").