Muhammad was commanded to follow the rituals of Abraham

The rites and rituals of our religion all come from Abraham, and Muhammad was commanded to follow the religion of Abraham (milat Ibrahim). The word milat ( مِلَّةَ ) comes from the root which means to dictate but also signifies the specific religious practices of Abraham. So this expression, milat Ibrahim ( مِلَّةَ إِبْرَاهِيمَ ), can be understood as the religious practices dictated through Abraham.

[2:130] Who would forsake the religion of Abraham (milat Ibrahim), except one who fools his own soul? We have chosen him in this world, and in the Hereafter he will be with the righteous.

وَمَنْ يَرْغَبُ عَنْ مِلَّةِ إِبْرَاهِيمَ إِلَّا مَنْ سَفِهَ نَفْسَهُ وَلَقَدِ اصْطَفَيْنَاهُ فِي الدُّنْيَا وَإِنَّهُ فِي الْآخِرَةِ لَمِنَ الصَّالِحِينَ

[16:123] Then we inspired you (Muhammad) to follow the religion of Abraham (milat Ibrahim), the monotheist; he never was an idol worshiper.

ثُمَّ أَوْحَيْنَا إِلَيْكَ أَنِ اتَّبِعْ مِلَّةَ إِبْرَاهِيمَ حَنِيفًا وَمَا كَانَ مِنَ الْمُشْرِكِينَ

[6:161] Say, “My Lord has guided me in a straight path—the perfect religion of Abraham (milat Ibrahim), monotheism. He never was an idol worshiper.” [6:162] Say, “My Contact Prayers (Salat), my worship practices, my life and my death, are all devoted absolutely to GOD alone, the Lord of the universe.

قُلْ إِنَّنِي هَدَانِي رَبِّي إِلَىٰ صِرَاطٍ مُسْتَقِيمٍ دِينًا قِيَمًا مِلَّةَ إِبْرَاهِيمَ حَنِيفًا وَمَا كَانَ مِنَ الْمُشْرِكِينَ قُلْ إِنَّ صَلَاتِي وَنُسُكِي وَمَحْيَايَ وَمَمَاتِي لِلَّهِ رَبِّ الْعَالَمِينَ