[Machine] And indeed, the angel of death, ﷺ , sought permission from his Lord the Blessed and Exalted to go to Jacob. So, permission was granted to him and he came to him. Jacob said to him, "O angel of death, I ask you by the One who created you or by the One whom you asked, did you take the soul of Joseph amongst those whom you have taken?" He replied, "No." The angel of death said to him, "O Jacob, should I not inform you of certain words? Or should I say something to you?" Jacob said, "Yes." The angel of death said, "Say, 'O Possessor of known good, who is never severed eternally and no one can encompass Him except you.'" Jacob called upon these words that night, and before the break of dawn, the shirt was thrown on his face, and he regained his eyesight.  

وَإِنَّ مَلَكَ الْمَوْتِ عَلَيْهِ السَّلَامُ اسْتَأْذَنَ رَبَّهَ تَبَارَكَ وَتَعَالَى فِي أَنْ يَأْتِيَ يَعْقُوبَ فَأَذِنَ لَهُ فَجَاءَهُ فَقَالَ لَهُ يَعْقُوبُ يَا مَلَكَ الْمَوْتِ أَسْأَلُكَ بِالَّذِي خَلَقَكَ أَوْ بِالَّذِي سَأَلَهُ هَلْ قَبَضْتَ نَفْسَ يُوسُفَ فِيمَنْ قَبَضْتَ مِنَ النُّفُوسِ؟ قَالَ لَا قَالَ لَهُ مَلَكُ الْمَوْتِ يَا يَعْقُوبُ أَلَا أُعَلِّمُكَ كَلِمَاتٍ؟ أَوْ قَالَ شَيْئًا؟ قَالَ بَلَى قَالَ قُلْ يَا ذَا الْمَعْرُوفِ الَّذِي لَا يَنْقَطِعُ أَبَدًا وَلَا يُحْصِيهِ غَيْرُكَ قَالَ «فَدَعَا بِهَا يَعْقُوبُ فِي تِلْكَ اللَّيْلَةِ فَلَمْ يَطْلُعِ الْفَجْرُ حَتَّى طُرِحَ الْقَمِيصُ عَلَى وَجْهِهِ فَارْتَدَّ بَصِيرًا»