وَإِذْ قَالَ لُقْمَانُ لِابْنِهِ وَهُوَ يَعِظُهُ يَابُنَيَّ لَا تُشْرِكْ بِاللَّهِ إِنَّ الشِّرْكَ لَظُلْمٌ عَظِيمٌ
When Luqman said to his son, as he advised him: ‘O my son! Do not ascribe any partners to Allah. Polytheism is indeed a great injustice.’
Agha Ali Puya Commentary
Commentary on Quran 31:13
[Pooya/Ali Commentary 31:13] It is said that one of Luqman's wives and some of his children were disbelievers, but he preached unity of Allah to them and ultimately they became believers. Polytheism has been described as the greatest iniquity (zulmun azim). Now refer to Allah's reply to Ibrahim in Baqarah: 124 that He would bestow imamah on his descendants but it would not reach the unjust (zalim). The position of Ali ibn abi Talib and the Imams of the Ahl ul Bayt has been discussed in the commentary of said verses.