W is for Wajibat
X is for Xtra (Mustahabat)
.In day-to-day life, Muslims maintain the sanctity of God's commandments through a variety of practices which are fall into five main categories - Wajib, Mustahab, Haraam, Makruh and Mubah.
Wajib or Fardh means a religios responsibility which relates to tasks every Muslim is required to perform such as salaa, sawm, hajj, hijab, eating onl halal, etc.
Mustahab, or sunnat acts, are duties recommended, but not essential; fulfilment of which is rewarded, though they may be neglected without punishment.
Haram means forbidden. In Islam it is used to refer to anything that is prohibited by Islamic law.
Makruh is a disliked act. Though it is not a sin, one who abstains from it is rewarded.
Mubah denotes an act which is neither forbidden nor recommended.
"There is no leniency with respect to the Wajibat, and there is no hardship (imposition) with respect to the Mustahabat (Xtra)". Imam Ali (pbuh)