The Prophet (ﷺ) said, "Allah created Adam in His picture, sixty cubits (about 30 meters) in height. When
He created him, He said (to him), "Go and greet that group of angels sitting there, and listen 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, 'AsSalamu-'Alaika wa
Rahmatullah (Peace and Allah's Mercy be on you) So they increased 'Wa Rahmatullah' The Prophet (ﷺ)
added 'So whoever will enter Paradise, will be of the shape and picture of Adam Since then the
creation of Adam's (offspring) (i.e. stature of human beings is being diminished continuously) to the
present time."
Sahih al-Bukhari Book 79, Hadith 1
By Allah, it is you who have killed him. They said: By Allah, we have not killed him. He then came to his people, and made mention of that to them. Then came he and his brother Huwayyisa, and he was older than he, and 'Abd al-Rahman b. Sahl. Then Muhayyisa went to speak, and it was he who had accompanied ('Abdullah) to Khaibar, whereupon Allah's Messenger (ﷺ) said to Muhayyisa: Observe greatness of the great (he meant the seniority of age). Then Huwayyisa spoke and then Muhayyisa also spoke. Thereupon Allah's Messenger (ﷺ) said: They should either pay blood-wit for your companion, or be prepared for war. Allah's Messenger (ﷺ) wrote about it to them (to the Jews). They wrote: Verily, by Allah, we have not killed him. Thereupon Allah's Messenger (ﷺ) said to Huwayyisa and Muhayyisa and Abd al-Rahman: Are you prepared to take oath in order to entitle yourselves for the blood-wit of your companion? They said: No. He (the Holy Prophet) said: Then the Jews will take oath (of their innocence). They said: They are not Muslims. Allah's Messenger (ﷺ), however, himself paid the blood-wit to them and sent to them one hundred camels until they entered into their houses, Sahl said: One red she-camel among them kicked me.
Sahih Muslim Book 28, Hadith 8