عَنْ أَبِي هُرَيْرَةَ، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ: خَلَقَ الله آدَمَ عَلَى صُورَتِهِ، طُولُهُ سِتُّونَ ذِرَاعًا، فَلَمَّا خَلَقَهُ قَالَ اذْهَبْ فَسَلِّمْ عَلَى أُولَئِكَ النَّفَرِ مِنَ الْمَلاَئِكَةِ جُلُوسٌ، فَاسْتَمِعْ مَا يُحَيُّونَكَ، فَإِنَّهَا تَحِيَّتُكَ وَتَحِيَّةُ ذُرِّيَّتِكَ. فَقَالَ السَّلاَمُ عَلَيْكُمْ. فَقَالُوا السَّلاَمُ عَلَيْكَ وَرَحْمَةُ الله. فَزَادُوهُ وَرَحْمَةُ الله، فَكُلُّ مَنْ يَدْخُلُ الْجَنَّةَ عَلَى صُورَةِ آدَمَ، فَلَمْ يَزَلِ الْخَلْقُ يَنْقُصُ بَعْدُ حَتَّى الآنَ۔
It is narrated by Hazrat Abu Hurairahra that, “The Prophetsa said, ‘Allah created Adam in His image, sixty cubits in height. When He created him, He said, ‘Go and greet that group of angels sitting there, and listen to what they will say in reply to you, for that will be your greeting and the greeting of your offspring.’ Adam (went and) said, ‘As-salamu ‘alaikum [Peace be upon you].’ They replied, ‘As-salamu ‘alaikum wa rahmatullah [Peace be upon you and Allah’s mercy].’ So they increased ‘Wa Rahmatullah’.’ The Prophetsa added, ‘So whoever will enter Paradise, will be of the shape and image of Adam. Since then, the creation [i.e., the stature of human beings] is being diminished continuously to the present time.’”
(Sahih al-Bukhari, Kitab al-isti’zan, Bab bad’i s-salam, Hadith 6227)