NASAI 4014: from ʿAbdullāh —

"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.'"

النسائي ٤٠١٤: عن عبد الله —

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


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Nasāʾī > Prohibition of Bloodshed > § The Gravest of Sins, and the Differences that Yahya and...
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