31:20
أَلَمْ تَرَوْا۟ أَنَّ ٱللَّهَ سَخَّرَ لَكُم مَّا فِى ٱلسَّمَٰوَٰتِ وَمَا فِى ٱلْأَرْضِ وَأَسْبَغَ عَلَيْكُمْ نِعَمَهُۥ ظَٰهِرَةًۭ وَبَاطِنَةًۭ ۗ وَمِنَ ٱلنَّاسِ مَن يُجَٰدِلُ فِى ٱللَّهِ بِغَيْرِ عِلْمٍۢ وَلَا هُدًۭى وَلَا كِتَٰبٍۢ مُّنِيرٍۢ
Do you not see that Allah has made subject to you whatever is in the heavens and whatever is in the earth and amply bestowed upon you His favors, [both] apparent and unapparent? But of the people is he who disputes about Allah without knowledge or guidance or an enlightening Book [from Him].
Translation · Saheeh International
Tafsir
Ibn Kathīr (abridged)
Reminder of Blessings Here
Allah reminds His creation of the blessings He bestows upon them in this world and the Hereafter. In the heavens He has subjugated for them the stars which give them light during the night and during the day, and He has created clouds, rain, snow and hail, and made the heavens a canopy which covers and protects them. On earth He has created for them stability and rivers, trees, crops and fruits; He has completed and perfected His graces upon them, apparent and hidden, by sending Messengers, revealing Books and removing doubts and excuses. Yet despite all this, not all the people believe, and indeed there are those who dispute concerning Allah, that is, His Tawhid, and His sending the Messengers. Their dispute is without knowledge and they have no sound evidence or valid inherited Book. Allah says:
ومِنَ النَّاسِ مَن يُجَـدِلُ فِى اللَّهِ بِغَيْرِ عِلْمٍ وَلاَ هُدًى وَلاَ كِتَـبٍ مُّنِيرٍ
(And among men is he who disputes about Allah, without knowledge or guidance, or a Book giving light (from Allah).) (22:8) meaning clear and unambiguous.
وَإِذَا قِيلَ لَهُمْ
(And when it is said to them) means, to these people who dispute about the Oneness of Allah.