The Hidden Words — Paragraph 56
Source (Arabic)
(٥٥) ﴿ يَا ابْنَ الوُجُودِ ﴾
لَا تَشْتَغِل بِالدُّنْيا؛ لِأَنَّ بِالنَّارِ نَمْتَحِنُ الذَّهَبَ، وَبِالذَّهَبِ نَمْتَحِنُ العِبادَ.
Translation
(55) O SON OF BEING!
Busy not thyself with this world, for with fire We test the gold, and with gold We test Our servants.