Abu Yahya Sulaym bin Amir al-Kala'i (may Allah have mercy on him) said: We said to Sayyiduna al-Miqdam bin Ma'di Karib al-Kindi (may Allah be pleased with him): "O Abu Karimah, people claim that you did not see the Messenger of Allah (peace and blessings be upon him)." He said: "Yes indeed, by Allah, I saw him, and he took hold of this earlobe of mine while I was walking with an uncle of mine. Then he said to my uncle: 'Do you think he will remember it?'" We said: "O Abu Karimah, narrate to us what you heard from the Messenger of Allah (peace and blessings be upon him)." He said: I heard him say: "Everyone from the stillborn child to the very old man will be gathered on the Day of Resurrection in the form of Adam (peace be upon him), with the heart of Ayyub (peace be upon him) and the beauty of Yusuf (peace be upon him), beardless and with kohl-darkened eyes." We said: "O Messenger of Allah, then what of the disbeliever?" He (peace and blessings be upon him) said: "He will be enlarged for the Fire until the thickness of his skin becomes forty cubits, and a single one of his canine teeth will be like (Mount) Uhud."
Hadith Referenceالمعجم الكبير للطبراني / باب الميم / 17798