Musnad Ahmad 1156:222

Muhammad ibn Ubayd narrated to us, he said: Al-A’mash narrated to us, from Shaqiq, who said: ‘Abd al-Rahman ibn ‘Awf entered upon Umm Salamah and said: “O Mother of the Believers, I fear that I have perished. I am among the wealthiest of the Quraysh; I sold land of mine for forty thousand dinars.” She said: “Spend, O my son, for I heard the Messenger of Allah, peace and blessings of Allah be upon him, say: ‘Indeed, among my companions are those who will not see me after I depart from them.’” So I went to ‘Umar and informed him. He came to her and said: “By Allah, am I among them?” She said: “O Allah, no, and I will not exonerate anyone after you.”