The Cattle - 6:80
"His people disputed with him. "Do you still dispute with me about Allah when He has guided me to the truth? I do not fear what you associate partners with unless my Lord wills something. My Lord is all-encompassing in knowledge. Do you not take admonition?"
Why did Allah guide Ibrahim (as) to the truth?
The Bee/16:120
Abraham was a monotheistic pioneer, submissive to Allah. He never associated partners.
The Bee/16:121
He was grateful for His favors. He chose him and guided him to the right path.