5.
The Discourse on Samiddhi's Question about Suffering
67.
"'Suffering, suffering', venerable sir, is said.
In what way, venerable sir, would there be suffering or the concept of suffering?" etc.
The fifth.
Samiddhidukkhapañhā Sutta [SN 35.67, PTS 4.39]
Also known as: Samiddhidukkhapañhāsuttaṃ