[Machine] If the deceased leaves behind a male child or a male grandchild, then the father is entitled to one-sixth. If the deceased does not leave behind a male child or a male grandchild, then the father is next in line, and he starts with those who inherited with him from the obligatory heirs. They are given their obligatory shares. If there is any surplus from the estate after distributing the obligatory shares, and it exceeds one-sixth, then it belongs to the father. If the surplus does not exceed one-sixth, then one-sixth is obligatory for the father as well.  

أَنَّهُ إِنْ تَرَكَ الْمُتَوَفَّى وَلَدًا ذَكَرًا أَوْ وَلَدَ ابْنٍ ذَكَرًا فَإِنَّهُ يُفْرَضُ لِلْأَبِ السُّدُسُ وَإِنْ لَمْ يَتْرُكِ الْمُتَوَفَّى وَلَدًا ذَكَرًا وَلَا وَلَدَ ابْنٍ ذَكَرًا فَإِنَّ الْأَبَ يُخَلَّفُ وَيُبْدَأُ بِمَنْ شَرَكَهُ مِنْ أَهْلِ الْفَرَائِضِ فَيُعْطَوْنَ فَرَائِضَهُمْ فَإِنْ فَضَلَ مِنَ الْمَالِ السُّدُسُ فَأَكْثَرُ مِنْهُ كَانَ لِلْأَبِ وَإِنْ لَمْ يَفْضُلْ عَنْهُمُ السُّدُسُ فَأَكْثَرُ مِنْهُ فُرِضَ لِلْأَبِ السُّدُسُ فَرِيضَةً