There’s a sutta where a monk, probably Sāriputta, explains that the three hardest things in the training of the Buddha are: going forth, being content (with the practice), and knowing how to properly practice according the instructions.
Does anybody know which sutta is? I am unable to find it using search tools.
I looked in contentment and Sariputta, which were the terms I was more confident to have remembered right. I didn’t thought about searching for “hard to do”, “going forth”, or “practicing according to the Dhamma”. Next time I’d try more keyword.
Yet… it is not about being “content” but “satisfied”, abhirati, “extreme delight”… Something a bit harder to accomplish.