When Allah fashioned Adam in Paradise, He left him as He liked him to leave. Then Iblis roamed round him to see what actually that was and when he found him hollow from within, he recognised that he had been created with a disposition that he would not have control over himself.

"The Messenger of Allah (ﷺ), the true and truly inspired one, told us that: 'The creation of one of you is put together in his mother's womb for forty days, then it becomes a clot for a similar length of time, then it becomes a chewed lump of flesh for a similar length of time. Then Allah sends the angel to him and commands him to write down four things. He says: "Write down his deeds, his life span, his provision, and whether he is doomed (destined for Hell) or blessed (destined for Paradise)." By the One in Whose Hand is my soul! One of you may do the deeds of the people of Paradise until there is no more than a forearm's length between him and it, then the decree overtakes him and he does the deeds of the people of Hell until there is no more than a forearm's length between him and it, then the decree overtakes him and he does the deeds of the people of Paradise until he enters therein."

Allah's Messenger (ﷺ), the true and truly inspired said, "(The matter of the Creation of) a human being is put together in the womb of the mother in forty days, and then he becomes a clot of thick blood for a similar period, and then a piece of flesh for a similar period. Then Allah sends an angel who is ordered to write four things. He is ordered to write down his (i.e. the new creature's) deeds, his livelihood, his (date of) death, and whether he will be blessed or wretched (in religion). Then the soul is breathed into him. So, a man amongst you may do (good deeds till there is only a cubit between him and Paradise and then what has been written for him decides his behavior and he starts doing (evil) deeds characteristic of the people of the (Hell) Fire. And similarly a man amongst you may do (evil) deeds till there is only a cubit between him and the (Hell) Fire, and then what has been written for him decides his behavior, and he starts doing deeds characteristic of the people of Paradise."

Allah's Messenger (ﷺ) said, "Allah created the creation, and when He finished from His creation the Rahm (womb) got up, and Allah said (to it). "Stop! What do you want? It said; "At this place I seek refuge with You from all those who sever me (i.e. sever the ties of Kinship.)" Allah said: "Would you be pleased that I will keep good relation with the one who will keep good relation with you, and I will sever the relation with the one who will sever the relation with you. It said: 'Yes, 'O my Lord.' Allah said (to it), 'That is for you.'' And then Abu Huraira recited the Verse:-- "Would you then if you were given the authority, do mischief in the land, and sever your ties of kinship." (47.22)

Allah, the Exalted and Glorious, created Adam in His image with His length of sixty cubits, and as He created him He told him to greet that group, and that was a party of angels sitting there, and listen to the response that they give him, for it would form his greeting and that of his offspring. He then went away and said: Peace be upon you! They (the angels) said: May there be peace upon you and the Mercy of Allah, and they made an addition of" Mercy of Allah". So he who would get into Paradise would get in the form of Adam, his length being sixty cubits, then the people who followed him continued to diminish in size up to this day.