Aṅguttara Nikāya 3.135
Translators: sujato
Numbered Discourses 3.135
14. Yodhājīvavagga
14. A Warrior
Mittasutta
A Friend
“Tīhi, bhikkhave, aṅgehi samannāgato mitto sevitabbo.
“Mendicants, you should associate with a friend who has three factors.
Katamehi tīhi? (…)
What three?
Duddadaṁ dadāti, dukkaraṁ karoti, dukkhamaṁ khamati—
They give what is hard to give, they do what is hard to do, and they bear what is hard to bear.
imehi kho, bhikkhave, tīhi aṅgehi samannāgato mitto sevitabbo”ti.
You should associate with a friend who has these three factors.”
Tatiyaṁ.