Mishkat al-Masabih 5 Funerals كتاب الجنائز 114

وَعَنِ ابْنِ عَبَّاسٍ قَالَ: قَالَ رَسُولُ اللَّهِ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ: «الْبَسُوا مِنْ ثِيَابِكُمُ الْبَيَاضَ فَإِنَّهَا مَنْ خَيْرِ ثِيَابِكُمْ وَكَفِّنُوا فِيهَا مَوْتَاكُمْ وَمِنْ خَيْرِ أَكْحَالِكُمُ الْإِثْمِدُ فَإِنَّهُ يُنْبِتُ الشّعْر ويجلوا الْبَصَر» . رَوَاهُ أَبُو دَاوُد وَالتِّرْمِذِيّ

Ibn ‘Abbas reported God’s messenger as saying, “Wear your white garments, for they are among your best garments, and shroud your dead in them. Among the best types of collyrium you use is antimony ( ithmid ) for it makes the hair sprout and clears the vision.” Abu Da wad and Tirmidhi transmitted it, and Ibn Majah transmitted’ up to “shroud your dead in them.”