Sunan an-Nasa'i 4011
سنن النسائي#4011Sahihأَخْبَرَنِي عَبْدَةُ بْنُ عَبْدِ الرَّحِيمِ، قَالَ أَنْبَأَنَا ابْنُ شُمَيْلٍ، قَالَ أَنْبَأَنَا شُعْبَةُ، قَالَ حَدَّثَنَا فِرَاسٌ، قَالَ سَمِعْتُ الشَّعْبِيَّ، عَنْ عَبْدِ اللَّهِ بْنِ عَمْرٍو، عَنِ النَّبِيِّ صلى الله عليه وسلم قَالَ " الْكَبَائِرُ الإِشْرَاكُ بِاللَّهِ وَعُقُوقُ الْوَالِدَيْنِ وَقَتْلُ النَّفْسِ وَالْيَمِينُ الْغَمُوسُ " .
It was narrated from 'Abdullah bin 'Amr that:The Prophet [SAW] said: "The major sins are: Associating others with Allah, disobeying parents, killing a soul (murder) and swearing a false oath knowingly
Scholarly Authentication
The label above is the grade most of these scholars gave — one dissenting opinion no longer speaks for all of them. If any scholar calls a narration fabricated, that verdict is shown instead, whatever the others say. Each scholar's own wording:
In-book reference: 37:46