Musannaf Ibn Abi Shaybah 37400 — The words of Salman

It is narrated from Abu al-Bakhtari that a man from the tribe of Banu Abs was with Sayyiduna Salman (may Allah be pleased with him). He came to the River Tigris, and Sayyiduna Salman said to him: Drink water. He drank. Then he said to him: Drink water. He drank. Then he said to him: Drink water. He drank. Then he (may Allah be pleased with him) said to him: O brother of Banu Abs, do you think that this sip of yours has lessened the water of this Tigris in any way? Likewise, knowledge is something that does not run out. So seek for yourself the knowledge that benefits. Then he passed by Nahr Dann, and there were foodstuffs there and grain being winnowed in the wind. He said: O brother of Banu Abs, the One who owns its treasures owned them also when Muhammad (peace and blessings be upon him) was alive. Those people would pass the morning and the evening without having a single qafiz of wheat among them. Then he mentioned Jalula and the victories of the Muslims there, and said: O brother of Banu Abs, Allah Almighty has granted you this, although Allah Almighty had power over it even when Muhammad (peace and blessings be upon him) was alive.