Sayyidina Abu Huraryah (RA) reported that Allah’s Messenger said, “The first thing about which one will be questioned on the Day of Resurrection-meaning, the slave about blessings. It will be said, ‘Did we not give you a sound, healthy body and quench your thirst with cool water.’This Hadith is gharib. As for Dahhak, he was Ibn Abdur Rahman ibn Arzab but it is also said : Ibn Arzam and this latter is more correct.