Sunan an-Nasa'i 4015
سنن النسائي#4015Sahihأَخْبَرَنَا عَبْدَةُ، قَالَ أَنْبَأَنَا يَزِيدُ، قَالَ أَنْبَأَنَا شُعْبَةُ، عَنْ عَاصِمٍ، عَنْ أَبِي وَائِلٍ، عَنْ عَبْدِ اللَّهِ، قَالَ سَأَلْتُ رَسُولَ اللَّهِ صلى الله عليه وسلم أَىُّ الذَّنْبِ أَعْظَمُ قَالَ " الشِّرْكُ أَنْ تَجْعَلَ لِلَّهِ نِدًّا وَأَنْ تُزَانِيَ بِحَلِيلَةِ جَارِكَ وَأَنْ تَقْتُلَ وَلَدَكَ مَخَافَةَ الْفَقْرِ أَنْ يَأْكُلَ مَعَكَ " . ثُمَّ قَرَأَ عَبْدُ اللَّهِ { وَالَّذِينَ لاَ يَدْعُونَ مَعَ اللَّهِ إِلَهًا آخَرَ } . قَالَ أَبُو عَبْدِ الرَّحْمَنِ هَذَا خَطَأٌ وَالصَّوَابُ الَّذِي قَبْلَهُ وَحَدِيثُ يَزِيدَ هَذَا خَطَأٌ إِنَّمَا هُوَ وَاصِلٌ وَاللَّهُ تَعَالَى أَعْلَمُ .
It was narrated that 'Abdullah said:"I asked the Messenger of Allah [SAW], which sin is most grievous?" He said: "Shirk, setting up a rival to Allah, committing adultery with your neighbor's wife, and killing your child for fear of poverty, and that he may eat with you." Then 'Abdullah recited the Verse: "And those who invoke not any other Ilah (god) along with Allah
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: 37:50