The secrets of Meraj and the vision of Allah Taala

Assalamulaikum, O Prophet of Allah (Sallallahu alaihi wa sallam).  May I come closer to you?  Then He (Sallallahu alaihi wa sallam) said: Come closer.  He came a little closer.  In the same way, he kept requesting for permission many times and kept coming closer to the Holy Prophet (Sallallahu alaihi wa sallam).

In Musnad Imam Ahmad Bin Hambal, the Hadith is with a slight change:

Jibreel said: Assalamulaikum O Prophet of Allah (Sallallahu alaihi wa sallam).  The Holy Prophet (Sallallahu alaihi wa sallam) said: Walaikum Assalam.  Then he said: O Prophet of Allah (Sallallahu alaihi wa sallam) may I come closer?  He (Sallallahu alaihi wa sallam) said: Come closer.

In Kanz Ul Ummal, the words are like this:

Jibreel (May peace be upon him) said: May I come closer to You, O Prophet of Allah (Sallallahu alaihi wa sallam)!  The Holy Prophet (Sallallahu alaihi wa sallam) said: Come closer to me.

If on the night of Meraj also, Jibreel (May peace be upon him) had entered in the normal manner, the Holy Prophet (Sallallahu alaihi wa sallam) would have had to welcome him.  It was not acceptable to Allah Ta'ala that His Beloved should be disturbed out of His sleep and that He (Sallallahu alaihi wa sallam) should have had to welcome Jibreel (May peace be upon him).  Thus, the angel was ordered to enter the house from the roof.