Ibrahim alayhis salaam first went to his father to tell him about the guidance that ALLAH gave him & he decided to give first invitation to his father only hoping that he might understand.
He spoke to his father in the most gentle & polite manner.
He said-
"O my father!Verily! There has come to me knowledge which has not come to you. So follow me, I will guide you to a straight path." (19:43)
"O my father! Dont worship devil (shaitan) Verily! Shaitan has been a rebel (enemy) against the Most- Beneficent (ALLAH)"
"O my father!Verily! I fear that a torment might overtake you from the Most- Beneficent (ALLAH) if you become a companion of shaitan." (19:43-45)
[Sabse pehle Ibrahim alayhis salaam apne walid ke paas gaye ye batane ke liye ke unko ALLAH ki taraf se rehnumai mili hai aur unhone sabse pehle deen ki daawat apne walid ko hi di is umeed se ke wo baat samajh jayenge.
Unhone unse bohot narmi se baat kari aur ye kaha ke:
"Ae Abba jaan! Mere paas wo ilm aaya hai jo aapke paas nahi aaya to aap meri pairvi kijiye mai aapko seedhe raaste ki rehnumai karunga."
"Ae Abba jaan! Shaitan ki pairvi na kijiye kyuki wo ALLAH ka dushman hai."
"Ae Abba jaan! Mai darta hu ke kahi aap par ALLAH ki taraf se azaab na aa jaye agar shaitan ne aapko apna saathi/dost bana liya."]