On the authority of ʿAlī, who said: The unlettered Prophet, peace and blessings be upon him, made a covenant with me that none loves you except a believer, and none hates you except a hypocrite.

ʿAdī ibn Thābit said: I am of the generation for whom the Prophet, peace and blessings be upon him, supplicated. (1)

This is a good and authentic hadith.

4070 - Muḥammad ibn Bashshār, Yaʿqūb ibn Ibrāhīm, and others narrated to us; they said: Abū ʿĀṣim narrated to us, on the authority of Abū al-Jarrāḥ, who said: Jābir ibn Ṣubḥ narrated to me, who said: Umm Sharāḥīl narrated to me, who said:

Umm ʿAṭiyyah narrated to me, who said: The Prophet, peace and blessings be upon him, sent an army in which was ʿAlī. She said: I heard the Prophet, peace and blessings be upon him, raising his hands and saying: "O Allah, do not cause me to die until You show me ʿAlī." (2)

This is a good and strange hadith; we only know it through this chain.

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(1) A sound hadith, also recorded by Muslim (78), Ibn Mājah (114), al-Nasāʾī 8/115-116 and 117, and it is in al-Musnad (642) and (731).
Shuʿayb — may Allah be pleased with him — said: I found in the margin of the original manuscript of Siyar Aʿlām al-Nubalāʾ, in response to al-Dhahabī's objection to this hadith, the following text: What is meant is: none loves you with the lawful love that is regarded by Allah Almighty. As for love that entails those trials and afflictions, it carries no weight; rather, it is a burden upon its possessor, just as the Christians loved the Messiah.

(2) Its chain is weak due to the unknown status of Abū al-Jarrāḥ al-Mahrī and the unknown condition of Umm Sharāḥīl.
It was also recorded by al-Bukhārī in al-Tārīkh al-Kabīr 9/20, al-Ṭabarānī in al-Kabīr 25/(168), and in al-Awsaṭ (2453), and al-Mizzī in Tahdhīb al-Kamāl 23/187.