عَنِ ابْنِ عَبَّاسٍ رَضِيَ اللَّهُ عَنْهُ عَنِ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَآلِهِ وَسَلَّمَ أَنَّهُ أَمَرَ عَلِيًّا فَوَضَعَ لَهُ غُسْلًا ثُمَّ أَعْطَاهُ ثَوْبًا فَقَالَ: ((اسْتُرْنِي وَوَلِّنِي ظَهْرَكَ))
It is narrated from Sayyiduna Abdullah bin Abbas (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him and his family) instructed Sayyiduna Ali (may Allah be pleased with him), so he prepared the water for the Prophet’s (peace and blessings be upon him and his family) bath. Then the Prophet (peace and blessings be upon him and his family) gave him a cloth and said: Cover me with this and turn your back towards me.