Arabic (Original)
حَدَّثَنَا يَزِيدُ أَخْبَرَنَا هِشَامٌ عَنْ مُحَمَّدٍ عَنْ أَبِي هُرَيْرَةَ عَنْ النَّبِيِّ صَلَّى اللَّهُ عَلَيْهِ وَسَلَّمَ قَالَ إِذَا اسْتَيْقَظَ أَحَدُكُمْ مِنْ مَنَامِهِ فَلَا يَغْمِسْ يَدَهُ فِي طَهُورِهِ حَتَّى يُفْرِغَ عَلَيْهَا فَيَغْسِلَهَا فَإِنَّهُ لَا يَدْرِي أَيْنَ بَاتَتْ يَدُهُ.
English Translation
The Prophet (peace be upon him) said: 'When one of you wakes from sleep, let him not dip his hand into his washing vessel until he pours water over it and washes it, for he does not know where his hand spent the night.'