Which of the following is the biggest Sin in Quran?

قرآن میں درج ذیل میں سے سب سے بڑا گناہ کون سا ہے؟

Shirk

Non performance of Hajj

Black magic

None of these

Shirk (associating partners with Allah) is the greatest sin in Islam, as mentioned in Surah An-Nisa (4:48).

It is the only sin that Allah does not forgive if a person dies without repentance.