Imam (A) said...
Imam (A) said: “So far as the first blowing is concerned, verily Allah will command angel Israfil, who will come down towards the earth, and with him will be a Trumpet; and the Trumpet will have one mouth-piece and two tubes; and the space between the two tubes will be like that between the sky and earth.” “When the angels will see Israfil descend towards the earth with his Trumpet, they will say: “Verily, Allah has ordered the inhabitant of tbe earth to die, and the inhabitants of the heaven to die.” “Then he will blow into it once; and the voice will come out from that side which is towards the earth and all living beings on the earth will swoon and die; and the voice will come out from that side which is towards the heaven, and all living beings in the heavens will die, except Israfil.” Then Allah will say to Israfil: “O Israfil, die.” And he will die.
“They will remain like this as long as Allah would wish. Then Allah will order the heaven and it will reel, and will order the mountains and they will fly.