1(to a person who is staying)sala kakuhleGoodbye, Dad — Sala kakuhle tata
2(to people who are staying)salani kakuhleGoodbye, everyone! — Salani kakuhle nonke!
3(to a person who is leaving)hamba kakuhleGoodbye, Mom — Hamba kakuhle mama
4(to people who are leaving)hambani kakuhleGoodbye, everyone! — Hambani kakuhle nonke!
People often say 'sobonana' (meaning, 'we'll see each other again') when they are saying goodbye.