Wala tajAAaloo maAAa Allahi ilahan akhara innee lakum minhu natheerun mubeen (surah zariyat: 51)

Tafseer Tafheem-ul-Quran by Syed Abu-al-A'la Maududi

(51:51) and do not set up any deity with Allah. Surely I am a clear warner to you from Him. *48

Wa laa taj`aloo ma`al laahi ilaahan aakhara innee lakum minhu nazeerum mubeen

*48) Though these sentences are the Word of Allah, the speaker here is not AIIah but the Holy Messenger of Allah. In fact, Allah has made his Messenger say: "Flee unto Allah: I am warning you from Him." An instance of this style is found in the very first Surah of the Qur'an, Surah AI-Fatihah, where the Word is of Allah, but the speakers are the servants, who say: Iyyaka na `budu wa lyyaka nasta 'in; ihdi-nas sirat al-mustaqim: "Thee alone we worship and to Thee alone we pray for help. Show us the Straight Way." Just as there it has not been said: "O believers, pray to your Lord thus," but the context itself shows that it is a supplication which Allah is teaching His servants, so here also it has not been said; "O Prophet, say to these people,".but the context itself indicates that it is an invitation to the Oneness of God, which the Holy Prophet is presenting according to Allah's command. Besides Surah Al-Fatihah, there are several other instances also of this style in the Qur'an, where though the Word is of Allah, the speakers somewhere are the angels and somewhere the Holy Prophet, and the context shows as through whom AIlah is speaking at that particular place. For instance, see Surah Maryam: 64-65, As-Saaffat :159-167, Ash-Shu`ara': 10.