Poor Righteous Teachers (often shortened to PRT), were a pro-black hip-hop group active from the late ‘80s to early 2000s, founded by the rapper Wise Intelligent, backup vocalist Culture Freedom and producer Father Shaheed (deceased in 2014).

https://genius.com/Poor-righteous-teachers-conscious-style-lyrics

There’s niggas is lacking over there, niggas is lacking over here Some niggas is dying over here, and niggas is dying over there

You’re right - it’s niggas! Heureka, finally a safe N-word to use.