This is a short treatise written by Shaykh Ahmad Musa Jibril (May Allah preserve him) regarding the Islamic ruling on 'Celebrating the Holidays of the Infidels'. The author brings proof from the Qur'an, Sunnah, ijmaa' and the sayings and actions of the salaf to support his opinion. The author reaches the opinion -  just like many great imams before him - that it is not permissible in any form to 'celebrate' the holidays of the infidels.