I am arriving at the conclusion that abraham was sent to entire mankind till time of last prophet except for specific nations like prophet Lut based on a hadith of bukhari. Zayd bin amr bin nufayl accepted religion of Abraham. Further moses and Jesus were sent to children of Israel. And no prophet arrived to arabs before last prophet except Ismail and ibrahim.
Narrated Asma bint Abi Bakr (رضي الله عنها): I saw Zayd Ibn 'Amr Ibn Nufail standing with his back against the Ka'bah saying, "O people of Quraish! By Allah, none amongst you is on the Religion of Ibrahim (عليه السلام) except me." He used to preserve the lives of little girls: If somebody wanted to kill his daughter he would say to him, "Do not kill her for I will feed her on your behalf." So he would take her, and when she grew up nicely, he would say to her father, "Now if you want her, I will give her to you, and if you wish, I will feed her on your behalf." [Al-Bukhari: 3828].
Aditionally Prophets parents ending up in hellfire is because of their rejection of Religion of ibrahim