Parallel
John 3:13
Nestle 1904 Greek New Testament · Berean Standard Bible
καὶ οὐδεὶς ἀναβέβηκεν εἰς τὸν οὐρανὸν εἰ μὴ ὁ ἐκ τοῦ οὐρανοῦ καταβάς ὁ Υἱὸς τοῦ ἀνθρώπου
No one has ascended into heaven except the One who descended from heaven—the Son of Man (note: BYZ and TR include who is in heaven.).