Please read the narration which says that two companions quarrelled infront of The Holy Prophet and The Prophet forgot about the night of Al-Qadr at the end of month of Ramdhan.
It is hard to believe in such narrations: how come the dispute of two people made The Holy Prophet forgetful about the revealation?
But those fellows who believe in such narrations, we want to remind them that When Shias say about Bada'a that Allah's decision can be changed according to the actions of the people, they do not believe!
http://sunnah.com/bukhari/2/42
URDU TRANSLATION: