This Ndebele song is sung in churches all over Zimbabwe in Africa. I learned it from Hilary Seraph Donaldson in her series of instructional videos called Break into Song. Hilary learned it from Maria Minnaar-Bailey, and it is available in written form in Maria's Chaia Marima Songbook 3.
Here's a link to Hilary's suggested teaching plan for this song.
You can learn more from Hilary by watching the episode of Break into Song featuring Sithi Haleluya: