Q-Is the following narration authentic? Sayyiduna ‘Abdullah Ibn ‘Abbas (radiyallahu ‘anhuma) narrated that Rasulullah (sallallahu ‘alayhi wa sallam) said: ‘Love the Arabs for three reasons: Because I am an Arab, The Quran is in Arabic and the language of Jannah is Arabic’.മൂന്ന് കാരണങ്ങളാൽ അറബികളെ സ്നേഹിക്കുക: ഞാൻ ഒരു അറബി ആയതിനാൽ, ഖുറാൻ അറബിയിലും ജന്നയുടെ ഭാഷ അറബിയുമാണ്.?
The Hadith in question has been recorded in the following Hadith collections with a very weak chain: 1) Mustadrak Hakim, vol. 4 pg. 87. 2) Al Mu’jamul Kabir, Hadith: 11441. 3) Shu’abul Iman, Hadith: 1364 (See: Mizanul I’tidal, vol. 3 pg. 113 and Majma’uz Zawaid, vol. 10 pg. 52. Also see Faydul Qadir, vol. 1 pg. 232)
However, this Hadith is extremely Da`if (weak) and some scholars of the science of Hadith deemed it as Mawdu` (fabricated), such as Abu Hatim, Al-`Uqayly, Ibn Al-Jawzy in his book Al-Mawdu`at. Al-Haythamy mentioned this Hadith in his book Majma` Al-Zawa'id and commented: "It was related by Al-Tabarany in Al-Mu`jam Al-Kabir and Al-Mu`jam Al-Awsat but he said, 'The mother tongue of the people of Paradise is Arabic.'" The Sanad (chain of narrators) of this Hadith includes Al-`Ala' ibn `Amr Al-Hanafy who is a weak narrator as unanimously agreed by scholars.
Al-Dhahaby said in his book Al-Mizan: "Al-`Ala' ibn `Amr is Matruk (a narrator whose Hadith transmission was discarded due to unreliability)." Ibn Hibban said: "He is not to be taken as proof at all." Ibn Hibban mentioned the narration of Al-`Aqily of the Hadith referred to and said: "This Hadith is Mawdu`." Moreover, Al-`Aqily mentioned the chain of transmission of this Hadith and said: "It is Munkar (rejected Hadith reported by a weak narrator whose narration conflicts with an authentic Hadith), of frail text and has no reference."Therefore, the least that can be said about this Hadith is that it is extremely Da`if and cannot be used as proof or reference.
And Allah Ta’ala Knows best
6 Fatwa links below
https://hadithanswers.com/love-the-arabs/
https://islamqa.info/en/answers/83262/is-arabic-the-language-of-the-people-of-paradise
https://islaambasics.wordpress.com/2009/08/13/the-hadith-love-the-arabic-language-for-three-reasons/
https://www.al-feqh.com/en/the-hadith-love-the-arabic-language-for-three-reasons
https://www.al-feqh.com/en/the-hadith-love-arabs-for-three-reasons#:~:text=Q%3A%20The%20Prophet%20(peace%20be,peace%20be%20upon%20him)%3F
https://www.muftisays.com/forums/33-ahadeeth/9339-love-the-arabs.html