From: Luhya, East Africa
Source: Luhya (Kenya) oral-tradition proverb (Mao ahila bhusuma bhumekela); documented in Tim Wambunya, "Luyia Proverbs (from Kisa, Marama, Tsotso and Wanga)" (2005) — mother/ugali entry
The meaning given here is our own reading, and has not yet been checked against a source. Other interpretations exist.