Prophet Muhammad (PBUH): If the faith be in highest part of heaven, Men of Persians would attain it. [sahih Bukhari, sahih muslim and many more sources]
Prophet Muhammad (PBUH) himself said my ummah will divide into 73 sects, and 72 sects of them will be wrong exceot one; The right one are those who are
followers (Shia) of me and my Ahlulbayt. Ali (PBUH) his son in law and brother, Sayyedah Fatemah (PBUH) his daughter and mother of his generation (Kawsar), and his martyred grandsons Hassan and Hussain (PBUT) and 9 Imams from Hussain's generation.
Surah 21:
And We gave him
Ishaq and Yaqoub (prophet Ibrahim son and grandson), a son's son, and We made (them) all good (72)
And We made them Imams who guided (people) by Our command, and We revealed to them the doing of good and the keeping up of prayer and the giving of the alms, and Us (alone) did they serve;
(73)
Surah 11:
The mercy of Allah and His blessings are on you Ahlulbayt! surely He is Praised, Glorious (73)
Shia 12 Imams from Prophet and Quran:
The Prophet (s) said: "The Religion (Islam) will continue until the Hour (Day of Resurrection), having Twelve Caliphs for you, all of them will be from Quraysh. (his household) " [Sahih Muslim, (English), Chapter DCCLIV, v3, p1010, Tradition #4483; Sahih Muslim (Arabic), Kitab al-Imaara, 1980 Saudi Arabian Edition, v3, p1453, Tradition #10]
Who are Shia 12 Imams: https://www.al-islam.org/verses-gha...ches/2-prophet-s-foretells-about-twelve-imams
https://en.wikipedia.org/wiki/Hadith_of_the_two_weighty_things
Ghadir Khum:
Man konto mawla fa haza "Ali" un Mawla. O Allah, be a supporter of whoever supports him (Ali) and an enemy of whoever opposes him and divert the Truth to Ali.
https://en.wikipedia.org/wiki/Hadith_of_the_pond_of_Khumm