A. Yusuf Ali:Translation:
How then if We brought from each people a witness,
and We brought you as a witness against these
people! 560

Muhammad Asad:Translation:
How, then, [will the sinners fare on Judgment Day,] when We shall bring forward witnesses from within every community, 52 and bring thee [O Prophet] as witness against them?
560 Each Prophet and Leader is a witness for his People and his contemporaries - for those who accept Allah, and against those who reject Him.