[1412] ‘Injustice’ here means shirk (Association): ʿAbdullāh Ibn Masʿūd (رضي الله عنه) narrated that: “When this aya was sent down the Companions of the Prophet (ﷺ) felt it burdensome and said: “None of us did not do himself an injustice!” The Messenger (ﷺ) said: “It is not what you think it is, but it is akin to what Luqmān ˹the sage˺ said to his son: “My son, do not Associate with Allah ˹in worship˺. Indeed Association is a grave injustice” (31: 13), (al-Bukhārī: 6937; Muslim: 124).