Hadith No: 1
Ibn Taymiyyah - Minhaj as-Sunnah an-Nabawiyyah fi Naqdi Kalami al-Shi'ah al-Qadariyyah
Chapter Two: On the Necessity of Adhering to the Imami Doctrine
Chapter Ten: The Words of the Rawafid on the Virtues of Ali and the Response to Akhb al-Khwarizmi
Volume: (5) - Page Number: (42)
[The text is lengthy, so only the relevant excerpt is provided here]
- .... As for the Hadith of Sa'd, when Mu'awiyah commanded him to curse and he refused, saying: "What prevented you from cursing Ali ibn Abi Talib?" he replied: "Three things that the Messenger of Allah (peace be upon him and his holy progeny) said will prevent me from cursing him, for having one of them is dearer to me than red camel." This is a genuine Hadith narrated by Muslim in his Sahih.

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Reference: Minhaaj al-Sunnah Book 5

Hadith No: 2
Al-Albani - Books on the Narration of Prophetic Hadith - Hadith Number: (2397)
Type of Hadith: Sahīh
- Text of the Hadith: He forbade insulting the dead from Ziyaad ibn 'Alaqah, from his uncle: That al-Mughirah ibn Shu'bah insulted Ali ibn Abi Tālib, and Zayd ibn Arqam stood up to him and said: O al-Mughirah, did you not announce that the Messenger of Allah (peace be upon him and his holy progeny) forbade insulting the dead? Why then do you insult Ali, who is dead? Sahīh.

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Reference: Kutubo Takhreej al-Hadith an-Nabawi ash-Shareef Tradition No. 2397

Hadith No: 3
Al-Albani - Books on the Authentication of Noble Prophetic Hadith - Hadith Number: (98)
Type of Hadith: Sahih
- Text of Hadith 118: Ali ibn Muhammad narrated to us, saying: Abu Muawiya narrated to us, saying: Musa ibn Muslim narrated to us, from Ibn Sabit, who was Abdul Rahman, from Saad ibn Abi Waqqas, who said: "Muawiya came during one of his pilgrimages and entered upon Saad. They mentioned Ali, and he spoke ill of him, so Saad became angry and said: 'Do you say this about a man of whom I heard the Messenger of Allah (peace be upon him and his holy progeny) say: 'Whoever I am his Mawla, Ali is his Mawla'? And I heard him say: 'You are to me as Harun was to Musa, except that there is no prophet after me'? And I heard him say: 'Today, I will give the flag to a man who loves Allah and His Messenger.'" (Sahih) (Al-Sahihah 335/4) (Corrected Sunan Ibn Majah with a summary of the chain).

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Reference: Kutubo Takhreej al-Hadith an-Nabawi ash-Shareef Tradition No. 98