[Machine] I heard Ibn Mas'ood say, "I asked the Prophet ﷺ, which sin is the greatest?" He replied, "To associate partners with Allah while He alone created you." I asked further, "Then what?" He said, "To kill your own child out of fear that they would eat with you."
سَمِعْتُ ابْنَ مَسْعُودٍ ؓ يَقُولُ سَأَلْتُ النَّبِيَّ ﷺ قُلْتُ أِيُّ الْكَبَائِرِ أَكْبَرُ؟ قَالَ أَنْ تَجْعَلَ لِلَّهِ نِدًّا وَهُوَ خَلَقَكَ قُلْتُ ثُمَّ أَيٌّ؟ قَالَ أَنْ تُقْتَلَ وَلَدِكَ مِنْ أَجْلِ أَنْ يَأْكُلَ مَعَكَ
"I said: 'O Messenger of Allah, which sin is most grievous?' He said: 'Setting up a rival to Allah while it is He that created you.' I said: 'Then what?' He said: 'Killing your child so that he will not eat with you.' I said: 'Then what?' He said: 'Committing adultery with your neighbor's wife.'"
قُلْتُ يَا رَسُولَ اللَّهِ أَىُّ الذَّنْبِ أَعْظَمُ قَالَ أَنْ تَجْعَلَ لِلَّهِ نِدًّا وَهُوَ خَلَقَكَ قُلْتُ ثُمَّ أَىٌّ قَالَ أَنْ تَقْتُلَ وَلَدَكَ مِنْ أَجْلِ أَنْ يَطْعَمَ مَعَكَ قُلْتُ ثُمَّ أَىٌّ قَالَ ثُمَّ أَنْ تُزَانِيَ بِحَلِيلَةِ جَارِكَ
"I said: 'O Messenger of Allah, which sin is most grievous?' He said: 'Setting up a rival to Allah while it is He that created you.' I said: 'Then what?' He said: 'Killing your child so that he will not eat with you.' I said: 'Then what?' He said: 'Committing adultery with your neighbor's wife.'" (Using translation from Nasāʾī 4014)
قُلْتُ يَا رَسُولَ اللهِ أَيُّ الذَّنْبِ أَعْظَمُ؟ قَالَ «أَنْ تَجْعَلَ لِلَّهِ نِدًّا وَهُوَ خَلَقَكَ» قُلْتُ ثُمَّ أَيُّ؟ قَالَ «ثُمَّ أَنْ تَقْتُلَ وَلَدَكَ مِنْ أَجْلِ أَنْ يَطْعَمَ مَعَكَ» قُلْتُ ثُمَّ مَاذَا؟ قَالَ «ثُمَّ أَنْ تُزَانِيَ حَلِيلَةَ جَارِكَ»