إِنَّ ٱللَّهَ لَا يَغۡفِرُ أَن يُشۡرَكَ بِهِۦ وَيَغۡفِرُ مَا دُونَ ذَٰلِكَ لِمَن يَشَآءُۚ وَمَن يُشۡرِكۡ بِٱللَّهِ فَقَدِ ٱفۡتَرَىٰٓ إِثۡمًا عَظِيمًا ٤٨
Indeed, Allāh does not forgive association with Him, but He forgives what is less than that for whom He wills. And he who associates others with Allāh has certainly fabricated a tremendous sin.
Translation: Saheeh International (English)
Each word's meaning and sound
Allah does not forgive that anything from His creation should be associated to Him. Besides this and disbelief, He pardons the disobedience of whomever He wills, out of His bounty. Or He punishes those He wills among them according to their disobedience, out of His perfect justice. Whoever worships others next to Allah has committed a terrible sin, which is not forgiven if someone dies still doing it.
Al-Mukhtasar in interpreting the Noble Quran