278. hadíth
وَ رَوَى مُحَمَّدُ بْنُ قَيْسٍ عَنْ أَبِي جَعْفَرٍ عَلَيْهِ اَلسَّلاَمُ أَنَّهُ قَالَ: فِي رَجُلٍ قَتَلَ أُمَّهُ قَالَ "إِذَا كَانَ خَطَأً فَإِنَّ لَهُ نَصِيباً مِنْ مِيرَاثِهَا وَ إِنْ كَانَ قَتَلَهَا مُتَعَمِّداً فَلاَ يَرِثُ مِنْهَا شَيْئاً".
Muhammad ibn Qays narrated from Abu Jafar Imam Muhammad ibn Ali Al-Baqir (a.s) that he said regarding a man who killed his mother: "If he killed her accidentally, he is entitled to a share of her inheritance. However, if he killed her intentionally, he does not inherit anything from her."