Abd al-Rahman bin Yazid (may Allah have mercy on him) narrates: We said to Hudhayfah (may Allah be pleased with him): Tell us of a man who is closest to the Messenger of Allah (peace and blessings be upon him) in dignity, conduct and bearing. He said: "I do not know anyone closer to the Messenger of Allah (peace and blessings be upon him) in conduct, dignity and bearing, until the wall of his house conceals him, than Ibn Umm Abd."
He also said: "The fortunate ones among the Companions of the Messenger of Allah (peace and blessings be upon him) know that Ibn Umm Abd is the nearest of them to Allah on the Day of Resurrection."
Hadith Referenceالمعجم الكبير للطبراني / باب العين / 8455