Surah Al-An'am 6:137

وَكَذَٰلِكَ زَيَّنَ لِكَثِيرٍ مِّنَ ٱلْمُشْرِكِينَ قَتْلَ أَوْلَـٰدِهِمْ شُرَكَآؤُهُمْ لِيُرْدُوهُمْ وَلِيَلْبِسُوا۟ عَلَيْهِمْ دِينَهُمْ ۖ وَلَوْ شَآءَ ٱللَّهُ مَا فَعَلُوهُ ۖ فَذَرْهُمْ وَمَا يَفْتَرُونَ

And likewise, to many of the polytheists their partners have made [to seem] pleasing the killing of their children in order to bring about their destruction and to cover them with confusion in their religion. And if Allāh had willed, they would not have done so. So leave them and that which they invent.

Translation: Saheeh International

Tafsir

And thus in the same way that what is mentioned was adorned for them those associates of theirs from among the jinn have adorned for many of the idolaters the slaying of their children by burying them alive shurakā’uhum ‘those associates of theirs’ is read in the nominative as the subject of the verb zayyana …

Excerpt from Tafsir al-Jalalayn, commentary on 6:137, via Quran.com. The reader has the full commentary and 9 more tafsirs.