good argument for the proof of reality of night of ascension

Thus did we show Ibrâhim (Abraham) the kingdom of the heavens and the earth that he be one of those who have Faith with certainty

Al an'aam 75

Comment
Those who object to the night of the ascension and to the fact that Seal of Prophets Syedna Muhammad Salla'l la ho alaye hi wasallam had been blessed with ilm-ul-ghayb by Allah ,they should think that Allah is mentioning that He showed Syedna Ibrahim alaye hi Salam the kingdom of heavens and earths,So why are they objecting to the same phenomenon related to Syedna Muhammad Salla'l la hoalaye hi wasallam.