There go my nigga Wayne
Let them niggas hate or like my nigga Drake say
"We ain't got time to respond to niggas"

from Lil Wayne (Ft. Bun B, Busta Rhymes, Nas & Shyne) – Outro Lyrics on Rap Genius

Meaning

People have been saying Wayne is falling off, but Nas is telling him to let them think what they want and ignore them. Like Drake once said on an interview, “You can say all you want about me, I will never respond cuz I don’t care.”

Drake has specified in numerous songs that he wont respond to haters:

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