It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that he was present with the Prophet (peace and blessings be upon him) on the night of the jinn. The Prophet (peace and blessings be upon him) said to him: "Abdullah! Do you have water with you?" He replied that he had nabidh in a vessel. The Prophet (peace and blessings be upon him) said: "Pour it over my hands." The Prophet (peace and blessings be upon him) performed ablution with it and said: "O Abdullah bin Mas'ud! This is both a drink and purifying."