The Apostle of Allah ﷺ said: When anyone amongst you wakes up from sleep, he should wash his hands three times before putting it in the utensil, for he does not know where his hand was during the night.  

أَنَّهُ أَخْبَرَهُ أَنَّ النَّبِيَّ ﷺ قَالَ إِذَا اسْتَيْقَظَ أَحَدُكُمْ فَلْيُفْرِغْ عَلَى يَدِهِ ثَلاَثَ مَرَّاتٍ قَبْلَ أَنْ يُدْخِلَ يَدَهُ فِي إِنَائِهِ فَإِنَّهُ لاَ يَدْرِي فِيمَ بَاتَتْ يَدُهُ  

Yahya related to me from Malik from Abu'zZinad from al-Araj from Abu Hurayra that the Messenger of Allah ﷺ said, "When you wake up from sleep to pray, wash your hands before you put them in the wudu water, for you do not know where your hands have spent the night."  

أَنَّ رَسُولَ اللَّهِ ﷺ قَالَ إِذَا اسْتَيْقَظَ أَحَدُكُمْ مِنْ نَوْمِهِ فَلْيَغْسِلْ يَدَهُ قَبْلَ أَنْ يُدْخِلَهَا فِي وَضُوئِهِ فَإِنَّ أَحَدَكُمْ لاَ يَدْرِي أَيْنَ بَاتَتْ يَدُهُ  

"When any one of you wakes from sleep, let him not put his hand into the vessel until he has washed it three times, because he does not know where his hand spent the night." (Using translation from Nasāʾī 161)   

أَخْبَرَهُ أَنَّ النَّبِيَّ ﷺ قَالَ إِذَا اسْتَيْقَظَ أَحَدُكُمْ مِنْ مَنَامِهِ فَلْيُفْرِغْ عَلَى يَدَيْهِ ثَلَاثَ مَرَّاتٍ قَبْلَ أَنْ يُدْخِلَهُمَا فِي الْإِنَاءِ فَإِنَّهُ لَا يَدْرِي فِيمَ بَاتَتْ يَدُهُ  

[Machine] The Messenger of Allah ﷺ said, "When one of you wakes up, he should not put his hand into his vessel or his water container, or he said, into his purification water, until he washes it three times. Verily, he does not know where his hand spent the night."  

قَالَ رَسُولُ اللهِ ﷺ إِذَا اسْتَيْقَظَ أَحَدُكُمْ فَلَا يُدْخِلْ يَدَهُ فِي إِنَائِهِ أَوْ قَالَ فِي وَضُوئِهِ حَتَّى يَغْسِلَهَا ثَلَاثَ مَرَّاتٍ فَإِنَّهُ لَا يَدْرِي أَيْنَ بَاتَتْ يَدُهُ