The Prophet (ﷺ) said, "Allah created Adam, making him 60 cubits tall. When He created him, He said tohim, "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-SalamuAlaikum (i.e. Peace be upon you). The angels said, "As-salamu Alaika wa Rahmatu-l-lahi" (i.e. Peaceand Allah's Mercy be upon you). Thus the angels added to Adam's salutation the expression, 'WaRahmatu-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.