The Holy Prophet of Islam (s.a.w.s.) says about the virtues of Imam Ali (a.s.):
If the trees were pens, the seas ink, the jinn were calculators, and humans were writers, they would not be able to count the virtues of Ali ibn Abi Talib.
In another narration, the Holy Prophet of Islam says about the virtues of Imam Ali:
Whoever wants to see the knowledge of Adam, the understanding of Noah, the patience of Abraham, the asceticism of Yahya ibn Zakariyya, and the strength of Moses ibn Imran, let him look at Ali ibn Abi Talib.
Another of the virtues of Imam Ali (peace be upon him) is that he was born in the Kaaba. When Fatimah bint Asad (peace be upon her), the mother of Imam Ali (peace be upon him), went into labor, she entered the Masjid al-Haram with divine inspiration and spoke to her God facing the wall of the Kaaba. Suddenly, the wall of the Kaaba split open and Fatimah bint Asad entered the Kaaba through the crack in the wall, and her beloved child was born in the Kaaba.