Chapter: 1, Faith (Kitab Al Iman)
Hadith No: 18 Narrated/Authority of Abdullah bin Umar
The Holy Prophet (may peace be upon him) said that the foundation of Islam is built on five pillars. These pillars are: the belief in one God, praying regularly, giving to charity, fasting during Ramadan, and going on pilgrimage to Mecca. Someone asked Abdullah bin Umar which comes first, the pilgrimage or fasting during Ramadan. He answered that fasting during Ramadan comes before the pilgrimage.