Abraham, known as Ibrahim (إِبْرَاهِيْم, romanized: ʾIbrāhīm), in Arabic, is recognized as a prophet and messenger of God in Islam. Abraham plays a prominent role as an example of faith in Judaism, Christianity, and Islam. In Muslim belief, Abraham fulfilled all the commandments and trials wherein God nurtured him throughout his lifetime.
The Hadeeth from Imam Jafar Al-Sadiq (AS) says: Allah has made Ebrahim a servant (Abd) before making him a prophet (Nabi)), and made him a prophet before making him a messenger (Rasool), and made him a messenger before making him His Khaleel and made him His Khaleel before making him an Imam. (Al-Kafi 1/175).
This means that the responsibility of Ebrahim was increasing from Abd (servant) to Nabi (prophet), then to Rasool (messenger) then to Imam. That is why Ebrahim asked Allah whether his progeny will have the same status of Imamate? Allah replied him: My appointment does not reach to the sinners.
The prophet (Nabi) receives the revelation from Allah. The Rasool (messenger) is responsible to convey the message of Allah to people. The Imam has the responsibility to implement the orders of Allah in every aspect and every dimension of life. Ebrahim was appointed by Allah as Imam for all people to guide them all to implement the orders of Allah in life. Not all the prophets were Imams but only the greatest of them.
The Twelve Infallible Imams are not prophets but successors of the greatest prophet and greatest messenger Muhammad (SAWA). They are the divine guides who responsible to implement the orders of Allah in every matter.
Thank you for your question. While the previous prophets (as) all followed the essence of Islam, which is submission to Allah, they had their own divine laws and were not called Muslims. A Muslim is a term given to those people who follow the divine law as transmitted by the final prophet Muhammad (saw). For this reason, the believers who followed the previous prophets are not outwardly called Muslims, even if the essence of their religion is submission (islam) and the reality of the practice of that essence makes them one who has submitted (muslim).
May you always be successful
Ibrahim is a noble name of a great prophet mentioned in Quran with salutation from Allah on him and his progeny سلام على ابراهيم، , but Ibby is a nick name which is completely different and has nothing from the blessings of the name of Ibrahim. This habit of nick names is in many cultures, but we should not give up the blessings of blessed names and use nick names which has no blessed meaning.
We don't say that it is Haraam to use a nick name, but it will deprive you from the blessing of the real name of the prophet. Same as those who leave using the name Mohammad and use Mo, and those who leave the name Mustafa and use Muss or Moss , etc. This practice should not be encouraged among Muslims.
It should be also mentioned that same nick names are used non Muslims, which means that your Muslim identity which comes from name, and other reasons, is given up if you leave using your real blessed name.
Yes we can say that because the God of Prophet Ibrahim is none but Allah.
Most of the Jewish people are negative against Ismail and focus on Isaac being their great grand father. They deny the fact of sacrifice of Ibrahim by his son Ismail and claim that it was by his son Isaac.
There are few Jewish scholars who believe in the sacrifice of Ismail, but majority of Jewish available literature claim that it was Isaac not Ismail.
Dr John T. Noble from Harvard University wrote a book on Ismail through a research in the Old Testaments, published in 2016, in which he confirmed the status of Ismail against what most of Jewish people claim.