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كتاب الإيمان
2
Belief
(23)
Chapter: Dhulm (wrong) of one kind can be greater or lesser than that of another
(23)
باب ظُلْمٌ دُونَ ظُلْمٍ

Narrated 'Abdullah:

When the following Verse was revealed: "It is those who believe and confuse not their belief with wrong (worshipping others besides Allah.)" (6:83), the companions of Allah's Messenger (ﷺ) asked, "Who is amongst us who had not done injustice (wrong)?" Allah revealed: "No doubt, joining others in worship with Allah is a great injustice (wrong) indeed." (31.13)

حَدَّثَنَا أَبُو الْوَلِيدِ، قَالَ حَدَّثَنَا شُعْبَةُ، ح‏.‏ قَالَ وَحَدَّثَنِي بِشْرٌ، قَالَ حَدَّثَنَا مُحَمَّدٌ، عَنْ شُعْبَةَ، عَنْ سُلَيْمَانَ، عَنْ إِبْرَاهِيمَ، عَنْ عَلْقَمَةَ، عَنْ عَبْدِ اللَّهِ، قَالَ لَمَّا نَزَلَتِ ‏{‏الَّذِينَ آمَنُوا وَلَمْ يَلْبِسُوا إِيمَانَهُمْ بِظُلْمٍ‏}‏ قَالَ أَصْحَابُ رَسُولِ اللَّهِ صلى الله عليه وسلم أَيُّنَا لَمْ يَظْلِمْ فَأَنْزَلَ اللَّهُ ‏{‏إِنَّ الشِّرْكَ لَظُلْمٌ عَظِيمٌ‏}‏‏.‏
Reference : Sahih al-Bukhari 32
In-book reference : Book 2, Hadith 25
USC-MSA web (English) reference : Vol. 1, Book 2, Hadith 32
  (deprecated numbering scheme)