﴿ فَوَرَبِّ ٱلسَّمَآءِ وَٱلْأَرْضِ إِنَّهُۥ لَحَقٌّۭ مِّثْلَ مَآ أَنَّكُمْ تَنطِقُونَ ﴾

“for, by the Sustainer of heaven and earth, this [life after death] is the very truth - as true as that you are endowed with speech!”

Literally ‘It is certain like your talking’. It implies that when one’s voice can be reproduced, it should be possible to reproduce one’s existence. Perfect reproduction of a part of a man’s existence may be experienced in this world. It can be imagined from this that reproduction of the whole existence of man is possible.