Or were you witnesses when death approached Ya'qub (Jacob)? When he said unto his sons, "What will you worship after me?" They said, "We shall worship your AIlah (God ـ Allah) the Ilah of your fathers, Ibrahim (Abraham), Isma'il (Ishmael), Ishaq (Isaac), One Ilah, and to Him we submit (in Islam)) (133)That was a nation who has passed away. They shall receive the reward of what they earned and you of what you earn. And you will not be asked of what they used to do (134)

This Ayah contains Allah's criticism of the Arab pagans among the offspring of Isma'il as well as the disbelievers among the Children of Israel Jacob the son of Isaac, the son of Ibrahim. When death came to Jacob, he advised his children to worship Allah alone without partners. He said to them,

مَا تَعْبُدُونَ مِن بَعْدِي قَالُوا نَعْبُدُ إِلَٰهَكَ وَإِلَٰهَ آبَائِكَ إِبْرَاهِيمَ وَإِسْمَاعِيلَ وَإِسْحَاقَ

("What will you worship after me?" They said, "We shall worship your Ilah (God ـ Allah) the Ilah of your fathers, Ibrahim, Isma'il, Ishaq,")

Mentioning Isma'il here is a figure of speech, because Isma'il is Jacob's uncle. An-Nahas said that the Arabs call the uncle a father, as Al-Qurtubi mentioned).

This Ayah is used as evidence that the grandfather is called a father and inherits, rather than the brothers (i.e. when his son dies), as Abu Bakr asserted, according to Al-Bukhari who narrated Abu Bakr's statement from Ibn 'Abbas and Ibn Az-Zubayr. Al-Bukhari then commented that there are no opposing opinions regarding this subject. This is also the opinion of 'A'ishah the Mother of the believers, Al-Hasan Al-Basri, Tawus and 'Ata', Malik, Ash-Shaf'i and Ahmad said that the inheritance is divided between the grandfather and the brothers. It was reported that this was also the opinion of 'Umar, 'Uthman, 'Ali, bin Mas'ud, Zayd bin Thabit and several scholars among the Salaf and later generations.

The statement,

إِلَٰهًا وَاحِدًا

(One Ilah (God)) means, "We single Him out in divinity and do not associate anything or anyone with Him."

 وَنَحْنُ لَهُ مُسْلِمُونَ

(And to Him we submit), in obedience meaning, obedient and submissiveness. Similarly, Allah said,

وَلَهُ أَسْلَمَ مَن فِي السَّمَاوَاتِ وَالْأَرْضِ طَوْعًا وَكَرْهًا وَإِلَيْهِ يُرْجَعُونَ

(While to Him submitted all creatures in the heavens and the earth, willingly or unwillingly. And to Him shall they all be returned)(3:83).

Indeed, Islam is the religion of all the Prophets, even if their rei]spective laws differed. Allah said,

وَمَا أَرْسَلْنَا مِن قَبْلِكَ مِن رَّسُولٍ إِلَّا نُوحِي إِلَيْهِ أَنَّهُ لَا إِلَٰهَ إِلَّا أَنَا فَاعْبُدُونِ

(And We did not send any Messenger before you (O Muhammad ﷺ)[but We revealed to him (saying): La ilaha illa Ana [none has the right to be worshipped but I (Allah)], so worship Me (alone and none else))(21:25).

There are many other Ayat - and Hadiths - on this subject. For instance, the Prophet ﷺ said,

نَحْنُ مَعْشَرَ الْأَنْبِيَاءِ أَوْلَادُ عَلَّاتٍ دِينُنا وَاحِدٌ

(We, the Prophets, are brothers with different mothers, but the same religion.)

Allah said,

تِلْكَ أُمَّةٌ قَدْ خَلَتْ

(That was a nation who has passed away) meaning, existed before your time,

لَهَا مَا كَسَبَتْ وَلَكُم مَّا كَسَبْتُمْ

(They shall receive the reward of what they earned and you of what you earn).

This Ayah proclaims, Your relationship to the Prophets or righteous people among your ancestors will not benefit you, unless you perform good deeds that bring about you religious benefit. They have their deeds and you have yours,

وَلَا تُسْأَلُونَ عَمَّا كَانُوا يَعْمَلُونَ

(And you will not be asked of what they used to do)."

This is why a Hadith proclaims,

مَنْ بَطَّأَ بِهِ عَمَلُهُ لَمْ يُسْرِعْ بِهِ نَسَبُهُ

(Whoever was slowed on account of his deeds will not get any faster on account of his family lineage.)'