Fasting is observed for the sake of Allah The Almighty and it is He Who will immensely reward His fasting slaves.
“अल्लाह सबै भन्दा महान हुन्, अल्लाह सबै भन्दा महान छन्, अल्लाह बाहेक कोही सत्य पूजा योग्य छैनन्।