[Machine] From his grandfather, he narrated that the Prophet ﷺ ordered the use of kohl (a type of eyeliner) before sleeping and said, "Let the fasting person be cautious of it."  

عَنْ جَدِّهِ رَفَعَهُ إِلَى النَّبِيِّ ﷺ أَمَرَ بِالْإِثْمِدِ الْمَسْرُوحِ عِنْدَ النَّوْمِ وَقَالَ «لِيَتَّقِهِ الصَّائِمُ»