كتاب الطهارة وسننها
1  
The Book of Purification and its Sunnah
(40)
Chapter: When a man wakes up from sleep: should he put his hand in the vessel before washing it?
(40)
باب الرَّجُلِ يَسْتَيْقِظُ مِنْ مَنَامِهِ هَلْ يُدْخِلُ يَدَهُ فِي الإِنَاءِ قَبْلَ أَنْ يَغْسِلَهَا
Sunan Ibn Majah 396
It was narrated that Harith said:
"'Ali called for water, and he washed his hands before putting them in the vessel, then he said: 'This is what I saw the Messenger of Allah doing.'"
حَدَّثَنَا أَبُو بَكْرِ بْنُ أَبِي شَيْبَةَ، حَدَّثَنَا أَبُو بَكْرِ بْنُ عَيَّاشٍ، عَنْ أَبِي إِسْحَاقَ، عَنِ الْحَارِثِ، قَالَ دَعَا عَلِيٌّ بِمَاءٍ فَغَسَلَ يَدَيْهِ قَبْلَ أَنْ يُدْخِلَهُمَا الإِنَاءَ ثُمَّ قَالَ هَكَذَا رَأَيْتُ رَسُولَ اللَّهِ ـ صلى الله عليه وسلم ـ صَنَعَ ‏.‏
Grade: Hasan (Darussalam)
Reference : Sunan Ibn Majah 396
In-book reference : Book 1, Hadith 130
English translation : Vol. 1, Book 1, Hadith 396