night of Qadr
commands Jibraeel to descend to earth, with a phalanx of angels,
carrying a green standard. He fixes it at the rear of al-Ka’bah. And
he has six hundred wings, two of which he never spreads except on
the night of Qadr. He spreads those two wings on that night, till they
go beyond the East and the West. Then Jibraeel disperses the angels
in that night, so they greet everyone who is standing, sitting, praying
and chanting (remembering Allah). They shake hands with them,
and say Amin to their prayers, till the day breaks.
-Rasul Allah (peace and blessings on him and on his Family, narrated in Al Amali ch. 27. h. 3)