How the Close Friend of Allah, Ibrahim spoke out against Shirk
Allah commanded His Messenger to;
وَاتْلُ عَلَيْهِمْ نَبَأَ إِبْرَاهِيمَ
And recite to them the story of Ibrahim.
Here Allah tells us about His servant, Messenger and Close Friend, Ibrahim, upon him be peace, the leader of the pure monotheists.
Allah commanded His Messenger Muhammad to recite this story to his Ummah so that they could follow this example of sincerity towards Allah, putting one's trust in Him, worshipping Him Alone with no partner or associate, and renouncing Shirk and its people.
Allah granted guidance to Ibrahim before, i.e., from a very early age he had denounced his people's practice of worshipping idols with Allah, may He be exalted.
Allah tells;
إِذْ قَالَ لاَِبِيهِ وَقَوْمِهِ مَا تَعْبُدُونَ