Al-Muhallab bin Abu Sufrah narrates from a companion of the Messenger (Sayyiduna Bara’ bin Azib) (may Allah be pleased with him) that the Noble Prophet (peace and blessings be upon him) said: I think that those people (i.e., Abu Sufyan and his people) will attack you at night; if that happens, your slogan will be: {حم لَا یُنْصَرُوْنَ}.