It is narrated from Sayyiduna Ibn Mas'ud (may Allah be pleased with him) that once the Prophet (peace and blessings be upon him) gathered us together, and at that time we were forty people. I was the last among them to arrive. Then the Prophet (peace and blessings be upon him) said: "You people will attain victory and help. Whoever among you reaches that time should fear Allah, enjoin good, and forbid evil. And whoever deliberately attributes a lie to me should make his abode in Hell."