Translation:

56. This is a Warner of the (series of) Warners of old!

Notes (Tafseer)

5123. The Prophet before the Quraish (and before us) continues the line of messengers of Allah who have come to teach mankind and lead men into unity and righteousness. Shall we not listen to his voice? Every day that passes, the Judgment approaches nearer and nearer. But Allah alone can say at what precise hour it will come to any of us. It is certain, and yet it is a mystery, which Allah alone can lay bare.