Al-Adab Al-Mufrad #980

Abu Hurayra reported that the Prophet, may Allah bless him and grant him peace, said, "Allah created Adam, may Allah bless him and grant him peace, and his height was 60 spans. He said, 'Go and greet those (a group of angels who were sitting down) and listen to how they answer you. It is your greeting and the greeting of your descendants.' He said, 'Peace be upon you,' and they replied, 'Peace be upon you and the mercy of Allah.' They added, 'and the mercy of Allah'. All who enter the Garden will have his form, but creation has continued to decline until now.'"