Verse 18 of Sura al-Sajda and Ghadir
Verse 18 of Sura al-Sajda is a verse whose occasion of revelation, in Ziyarat al-Ghadiriyya, is attributed to Imam 'Ali (a).
The context of using verse 18 of Sura al-Sajda in the Event of Ghadir is depicted as follows: Ziyarat al-Ghadiriyya is a beautiful and comprehensive supplication. One of the topics mentioned in this ziyarat is the revelation of the verse: 
أَفَمَنْ کَانَ مُؤْمِنًا کَمَنْ کَانَ فَاسِقًا ۚ لَا یَسْتَوُونَ,Is he who is a believer like him who is a transgressor? They are not equal.
concerning 'Ali (a): و اللَّه تعالى اخبر عمّا اولاك من فضله بقوله: أَفَمَنْ كَانَ مُؤْمِنًا: And Allah the Almighty informs about those He has favored with His grace by saying: Is he who is a believer....[1]
Footnotes
- ↑ Al-Mazar al-Kabir, p. 273.
References
- Al-Mazar al-Kabir; Muhammad b. Ja'far b. Mashhadi, research: Jawad Qayyumi Isfahani, Qom: Muʾassasat al-Nashr al-Islami, 14129 AH.