DutyCause or relationAdditional considerationPrayerAppointed timeCapacity and the relevant time portionFastingPresence in RamadanSpecific excuses affecting performanceZakatQualifying growth-capable nisabLapse of a year where requiredHajjRelation to the Sacred HouseAbility and once-in-a-lifetime dutyʿUshrProductive land and yieldAgricultural levy rulesSadaqat al-fitrRelevant support and guardianshipIts distinct conditions
Identifying a cause does not settle all the legal requirements. One must still ask whether conditions are fulfilled, any bar is present, and when and how the act is performed. The next chapter turns to barriers to legal effect.