Musnad Abu Ya'la al-Mawsili 3:251

Ibrahim ibn Sa'id narrated to us, Husayn ibn Muhammad narrated to us, from al-Hudhayl ibn Hilal, from 'Abd al-Rahman ibn Mas'ud al-'Abdi, from 'Ali, who said: The Messenger of Allah (ﷺ) said: "Whoever is pleased to look at a man whose some of his limbs precede him to Paradise, then let him look at Zayd ibn Sawhan."