Prophet Muhammad said: "Faith is that which resides firmly in the heart and which is proved by deeds."
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Is to believe that there is only one Supreme, Eternal, Infinite and Unparallel entity, Allah (God). He alone is the creator of all the universe. Quran declares: " Such is Allah, your Lord. There is no God except Him, the Creator of all things, so worship Him. And He is the guardian over all things." (6:102) (6:102)
ﻴ ﹲﻞﻛ ٍﺀ ﻭﻲﻋﻠﹶﻰ ﻛﹸﻞﱢ ﺷ ﻫﻮ ﻩ ﻭ ﻭﺪﻋﺒ ﺀٍ ﻓﹶﺎﻲ ﻛﹸ ﱢﻞ ﺷﻟﻖﺎ ﺧﻮ ﺇﹺ ﱠﻻ ﻫﻢ ﻻ ﹺﺇﻟﹶـﻪ ﻜﹸﺑ ﺭﻢ ﺍﻟ ﹼﻠﻪ ﻜﹸﺫﹶﻟ