Excellence of remembrance and glorification of Allah
لَا إِلهَ إِلَّا اللهُ وَحْدَهُ لَا شَرِيكَ لَهُ، لَهُ المُلْكُ وَلَهُ الحَمْد، وهُوَ عَلى كُلِّ شَيءٍ قَديرٌ. (مائة مرة)
Abu Hurayrah reported that the Messenger of Allah (saw) said: Whoever says: None has the right to be worshipped except Allah, alone, without partner. To Him belongs all sovereignty and praise and He is over all things omnipotent. ...a hundred times during the day, has the reward of freeing ten slaves, a hundred good deeds are recorded for him and a hundred bad deeds are wiped away and he has gained refuge from the devil that day until evening and none shall come with anything better except someone who has done more.