عَنِ ابْنِ عَبَّاسٍ قَالَ كَانَتْ لِرَسُولِ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ مُكْحُلَةٌ يَكْتَحِلُ بِهَا عِنْدَ النَّوْمِ ثَلَاثًا فِي كُلِّ عَيْنٍ
(Second chain) The Noble Prophet (peace and blessings be upon him and his family) had a kohl container, and when he would sleep, he would apply kohl from it to each eye three times.