Adui aangukapo mnyanyue

When your enemy falls, lift him up.

What it means
Helping an enemy up may cost you your advantage for the moment, but it can also be how an enemy stops being one. Grace given where it isn't owed can change the relationship itself.
Swahili · East Africa
Source and context
From: Swahili, East Africa
Source: Swahili (East Africa) oral-tradition proverb (Adui aangukapo mnyanyue), Swahili Proverbs project, Department of African Studies, University of Illinois (swahiliproverbs.afrst.illinois.edu) — enemy entry. Read via a text-extraction proxy (r.jina.ai) since the site's own TLS certificate is expired; its "Application" line: "Helping an enemy in trouble may make a friend."

The source explains it: Helping an enemy in trouble may make a friend.. The wording of the meaning is ours.