wajib
Noun
Meaning
wajib (countable and uncountable, plural wajibs)
(Islam) A religious duty; something that Muslims are obliged to do.
Synonyms
Examples
If, on the other hand, the collector is just in the collection but unjust in the distribution, the concealment of property from him is an obligation (wajib).
When actualized, the contingent becomes a 'necessary existent due to what is other than itself' (wajib al-wujud bi-ghayrihi).