The Quranic narration has no extra of fictional incidents; it’s a depiction of the reality. Thus, it’s the true one. Virgin Mary gave birth to prophet Issa (PBUH), who was taken to heavens as a soul and a body. Moreover, Prophet Muhammad (saws) states that Jesus will be back to earth signaling the approaching doomsday, as the Almighty says:

{ وَإِنَّهُ لَعِلْمٌ لِّلسَّاعَةِ فَلَا تَمْتَرُنَّ بِهَا وَاتَّبِعُونِ}

(And indeed, Jesus will be [a sign for] knowledge of the Hour, so be not in doubt of it, and follow Me.) (Az-Zukhruf: 61)