Sahih Bukhari

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