Who was the person who was made to resemble ‘Eesa (peace be upon him)?
Question

                I have a few question about the one who was crucified instead of Isa (peace be upon him) I have seen in one place saying that the one who betrayed Isa (PBUH) was made to look like Isa and was crucified and I have seen in another place saying that one Isa’s companions volunteered to be crucified instead of Isa. I am confused, can you tell me which one is true?.
Praise be to Allah.The Qur’aan states that 
    ‘Eesa (peace be upon him) was not crucified or killed, and that he was 
    lifted up to heaven. There is no text of the Revelation that tells us the 
    details of what happened on the day when that was made to appear to the 
    Jews, but there is a saheeh report from Ibn ‘Abbaas (may Allaah be pleased 
    with him) that the Messiah (peace be upon him) said to those of his 
    companions who were with him in the house: “Which of you will be made to 
    look like me and be killed in my stead, and he will be with me in the same 
    level as me (in Paradise)?” A young man who was one of the youngest of them 
    stood up, and he said to him: “Sit down.” Then he repeated it and that young 
    man stood up again, and he said: “Sit down.” Then he repeated it again and 
    that young man stood up and said, “I (will do it).” He said: “You are the 
    one.” So he was caused to look like ‘Eesa and ‘Eesa was lifted up from a 
    window in the house to heaven. Ibn Katheer (may Allaah have mercy on him) 
    said in his Tafseer (4/337), commenting on this report: This is a 
    saheeh isnaad going back to Ibn ‘Abbaas. Similarly it was narrated from more 
    than one of the salaf that he said to them: “Which of you will be made to 
    look like me and be killed in my stead, and he will be my companion in 
    Paradise?” End quote. 
Then he (may Allaah have 
    mercy on him) said (4/341): Ibn Jareer favoured the view that all of his 
    companions were made to look like ‘Eesa. End quote. This was mentioned in a 
    report narrated from Wahb ibn Munabbih which was narrated by Ibn Jareer (may 
    Allaah have mercy on him) and quoted by Ibn Katheer (4/337), in which it 
    states that when they surrounded ‘Eesa and his companions and entered upon 
    them, “Allaah made them all appear in the form of ‘Eesa and they said to 
    them, ‘You have bewitched us; send forth to us ‘Eesa or we will kill you 
    all,’ until they sent forth one of their number after ‘Eesa promised 
    Paradise to him, and they took him and crucified him.” 
But Ibn Katheer said after 
    that: This is a very strange story. End quote. 
He also (may Allaah have 
    mercy on him) said (4/341): Some of the Christians claim that Judas Iscariot 
    – who is the one who led the Jews to ‘Eesa – is the one who was made to look 
    like ‘Eesa so they crucified him, and he said: I am not the one you want, I 
    am the one who led you to him. Allaah knows best what really happened. End 
    quote. 
With that, Ibn Katheer (may 
    Allaah have mercy on him) concluded his discussion of this topic: Allaah 
    knows best what really happened. 
Knowledge of this matter is 
    of no great benefit; if we needed to know that, our Prophet  (peace and 
    blessings of Allaah be upon him) would have told us. 
And Allaah knows best.