In Sura Al-Araf(7:69) It is said that,
"Then do you wonder that there has come to you a reminder from your Lord through a man from among you, that he may warn you? And remember when He made you successors after the people of Noah and increased you in stature extensively. So remember the favors of Allah that you might succeed."
But in hadith sahih bukhari, Volume 4, Book 55, Number 543 Narrated Abu Huraira:
The Prophet said, "Allah created Adam, making him 60 cubits tall. When He created him, He said to him, "Go and greet that group of angels, and listen to their reply, for it will be your greeting (salutation) and the greeting (salutations of your offspring." So, Adam said (to the angels), As-Salamu Alaikum (i.e. Peace be upon you). The angels said, "As-salamu Alaika wa Rahmatu-l-lahi" (i.e. Peace and Allah's Mercy be upon you). Thus the angels added to Adam's salutation the expression, 'Wa Rahmatu-l-lahi,' Any person who will enter Paradise will resemble Adam (in appearance and figure). People have been decreasing in stature since Adam's creation.
So in Quran it's increasing , and hadith decreasing ...