Muharib bin Dithar asked Ata bin al-Sa'ib: Have you heard Sa'id bin Jubayr relate anything from Sayyiduna Ibn Abbas (may Allah be pleased with them both) about al-Kawthar? I said: Yes; he told that it means "abundant good" (al-khayr al-kathir). At this he said: Subhan Allah! Ibn Abbas rarely errs in anything he says. He (Sa'id) says: I heard Sayyiduna Ibn Umar (may Allah be pleased with them both) say that when the verse "Indeed, We have given you al-Kawthar" [Surah al-Kawthar: 1] was revealed, the Messenger of Allah (peace and blessings be upon him) said: "It is a river in Paradise whose two banks are of gold; it flows over pearls and rubies; its water is whiter than milk and sweeter than honey." Then he said: By Allah, Ibn Abbas spoke the truth; this is indeed the real "abundant good." This hadith has an authentic chain (sahih al-isnad), but the two Shaykhs did not record it.