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"So he misled them with deception, Then when they tasted of the tree, that which was hidden from them of their shame (private parts) became manifest to them and they began to stick together the leaves of Paradise over themselves (in order to cover their shame), And their Lord called out to them (saying): "Did I not forbid you that tree and tell you: Verily, Shaitaan (Satan) is an open enemy unto you?"" [Al-A'raaf (7):22]

Narrated 'Abdullah bin Amr bin Al 'Aas:

Allah's Apostle stopped (for a while near the Jimar) at Mina during his last Hajj for the people and they were asking him questions. A man came and said, "I forgot and got my head shaved before slaughtering the Hadi (sacrificing animal)." The Prophet said, "There is no harm, go and do the slaughtering now." Then another person came and said, "I forgot and slaughtered (the camel) before Rami (throwing of the pebbles) at the Jamra." The Prophet said, "Do the Rami now and there is no harm." The narrator added: So on that day, when the Prophet was asked about anything (as regards the ceremonies of Hajj) performed before or after its due time, his reply was: "Do it (now) and there is no harm." [The Book of Knowledge Volume 1, Book 3, Hadeeth 83]