Hadithcore
Sunan an-Nasa'i, 5720
sahih· Darussalam

It was narrated from Sa'eed bin Al-Musayyab that :

Abu Ad-Darda' used to drink that of which two-third had gone and one-third was left.

أَخْبَرَنَا زَكَرِيَّا بْنُ يَحْيَى، قَالَ حَدَّثَنَا عَبْدُ الأَعْلَى، قَالَ حَدَّثَنَا حَمَّادُ بْنُ سَلَمَةَ، عَنْ دَاوُدَ، عَنْ سَعِيدِ بْنِ الْمُسَيَّبِ، أَنَّ أَبَا الدَّرْدَاءِ، كَانَ يَشْرَبُ مَا ذَهَبَ ثُلُثَاهُ وَبَقِيَ ثُلُثُهُ ‏.‏

References2 variants
In-Book Reference
Book 51, Hadith 182
English Reference
Vol. 6, Book 51, Hadith 5723