رِيَاضُ الصَّالِحِينَ
Riyad as-Salihin 778
The Book of Dress
The Excellence of Wearing White Clothes and the Permissibility of Wearing Red, Green, Yellow and Black Clothes Made from Cotton and Linen but not Silk
وَعَنِ ابْنِ عَبَّاسٍ رضى اللَّهُ عَنْهُمَا أَنَّ رَسُولَ اللَّهِ صَلَّى اللَّه عَلَيْهِ وَسلم قَالَ: إلبسوا مِنْ ثِيَابِكُمُ الْبَيَاضَ؛ فَإِنَّهَا مِنْ خَيْرِ ثِيَابِكُمْ، وَكَفِّنُوا فِيهَا مَوْتَاكُمْ".((رَوَاهُ أَبُو دَاوُد وَالتِّرْمِذِيّ))
Ibn 'Abbas (May Allah be pleased with them) reported: I heard the Messenger of Allah (ﷺ) saying, "Put on white clothes because they are the best; and use them for shrouding your dead." [Abu Dawud and At- Tirmidhi].
Riyad as-Salihin, 778