Surah An-Naba 78:34
وَكَأْسًا دِهَاقًا
And a full cup.
Translation: Saheeh International
Tafsir
and a brimming cup wine filling the vessels in which it is in; in sūrat al-Qitāl it is said and rivers of wine Q. 4715.
Excerpt from Tafsir al-Jalalayn, commentary on 78:34, via Quran.com. The reader has the full commentary and 9 more tafsirs.