﴿ وَنُفِخَ فِى ٱلصُّورِ فَإِذَا هُم مِّنَ ٱلْأَجْدَاثِ إِلَىٰ رَبِّهِمْ يَنسِلُونَ ﴾

“And [then] the trumpet [of resurrection] will be blown - and lo! out of their graves towards their Sustainer will they all rush forth!”

And the Trumpet is blown — this is the Horn — at the second Blast for the Resurrection to take place; between the two Blasts is an interval of forty years; and lo! they those interred will be scrambling out of their graves towards their Lord emerging therefrom hurriedly.