Sahih al-Bukhari 6937
Narrated `Abdullah:
When the Verse:--'Those who believe and did not confuse their belief with wrong (worshipping others 
besides Allah).' (6.82) was revealed, it was hard on the companions of the Prophet (ﷺ) and they said, 
"Who among us has not wronged (oppressed) himself?" Allah's Messenger (ﷺ) said, "The meaning of the 
Verse is not as you think, but it is as Luqman said to his son, 'O my son! Join not in worship others 
with Allah, Verily! Joining others in worship with Allah is a great wrong indeed.'" (31.13)
حَدَّثَنَا إِسْحَاقُ بْنُ إِبْرَاهِيمَ، أَخْبَرَنَا وَكِيعٌ، ح حَدَّثَنَا يَحْيَى، حَدَّثَنَا وَكِيعٌ، عَنِ الأَعْمَشِ، عَنْ إِبْرَاهِيمَ، عَنْ عَلْقَمَةَ، عَنْ عَبْدِ اللَّهِ، رضى الله عنه قَالَ لَمَّا نَزَلَتْ هَذِهِ الآيَةُ ‏{‏الَّذِينَ آمَنُوا وَلَمْ يَلْبِسُوا إِيمَانَهُمْ بِظُلْمٍ‏}‏ شَقَّ ذَلِكَ عَلَى أَصْحَابِ النَّبِيِّ صلى الله عليه وسلم وَقَالُوا أَيُّنَا لَمْ يَظْلِمْ نَفْسَهُ‏.‏ فَقَالَ رَسُولُ اللَّهِ صلى الله عليه وسلم ‏"‏ لَيْسَ كَمَا تَظُنُّونَ‏.‏ إِنَّمَا هُوَ كَمَا قَالَ لُقْمَانُ لاِبْنِهِ ‏{‏يَا بُنَىَّ لاَ تُشْرِكْ بِاللَّهِ إِنَّ الشِّرْكَ لَظُلْمٌ عَظِيمٌ‏}‏‏"‏‏.‏