"Umar bin Al-Khattab informed me that he heard the Messenger of Allah (ﷺ) say: 'I will expel the Jews and the Christians from the Arabian Peninsula, and I will not leave anyone in it except a Muslim."

This Hadith is Hasan Sahih.
Jami` at-Tirmidhi Book 21, Hadith 70
← Previous Hadith That the Messenger of Allah (ﷺ) said: "If I live - if Allah wills - I will expel the Jews and the Christians from the Arabian Peninsula."

Jami` at-Tirmidhi Book 21, Hadith 69 Next Hadith → "Fatimah came to Abu Bakr and said: 'Who will inherit from you?' He said: 'My family and my son.' She said: 'So what about me? I do not get inheritance from my father?' So Abu Bakr said: 'I heard the Messenger of Allah (ﷺ) say: 'We are not inherited from' but I support those whom the Messenger of Allah (ﷺ) used to support, and I spend upon those whom the Messenger of Allah (ﷺ) spent upon."

There are narrations on this topic from 'Umar, Talhah, Az-Zubair, 'Abdur-Rahman bin 'Awf, Sa'd and 'Aishah.

The Hadith of Abu Hurairah is Hasan Gharib from this route. It is only reported with a chain by Hammad bin Salamah and 'Abdul Wahhab bin 'Ata, from Muhammad bin 'Amr, from Abu Salamah, from Abu Hurairah.

I asked Muhammad about this Hadith and he said: "No one is known to have reported it from Muhammad bin 'Amr, from Abu Salamah, from Abu Hurairah except from Hammad bin Salamah. 'Abdul Wahhab bin 'Ata reported it from Muhammad bib 'Amr, from Abu Salamah, and from Abu Hurairah and it is similar to the narration of Hammad bin Salamah. And this Hadith has been reported through other routes from Abu Bakr As-Siddiq, from the Prophet (ﷺ).

Jami` at-Tirmidhi Book 21, Hadith 71