Quran 50:16 from Surah Qaaf on Divine Marvels.
وَلَقَدۡ خَلَقۡنَا ٱلۡإِنسَٰنَ وَنَعۡلَمُ مَا تُوَسۡوِسُ بِهِۦ نَفۡسُهُۥۖ وَنَحۡنُ أَقۡرَبُ إِلَيۡهِ مِنۡ حَبۡلِ ٱلۡوَرِيدِ
English translation: And certainly We created man and We know what whispers to him his soul and We (are) nearer to him than (his) jugular vein (his) jugular vein
Transliteration: walaqad khalaqna al-insana wana'lamu ma tuwaswisu bihi nafsuhu wanahnu aqrabu ilayhi min habli al-waridi