[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»
The Prophet ﷺ commanded to apply collyrium mixed with musk at the time of sleep. He said: A man who is fasting should abstain from it. Abu Dawud said: Yahya b. Ma'in said to me: This tradition about the use of collyrium is munkar (i.e. contradicts the sound traditions on the subject).
عَنِ النَّبِيِّ ﷺ أَنَّهُ أَمَرَ بِالإِثْمِدِ الْمُرَوَّحِ عِنْدَ النَّوْمِ وَقَالَ لِيَتَّقِهِ الصَّائِمُ