1 – Waajib ‘Ainiy or “Fard ‘Ain” This is what the Shaari’ has requested to be done from every Mukallaf and it is not sufficient for some to do it whilst others do not. Examples of this include the Salaah, the Sawm, being faithful to contracts and the Zakaah. The one who leaves the action is therefore sinful and another person’s undertaking of it does not remove that sin from him.

2 – Waajib ‘Alaa Al-Kifaayah:

This is what the Shaari’ (Legislator) has requested to be undertaken by a Jamaa’ah (collective) of the Mukallafeen (and not all of them). If or when some have undertaken it, then it (the obligation) falls from the rest and there is no sin upon them. Rather, all are sinful if the Waajib upon the Kifaayah (sufficiency) is not met. Examples of this include Al-Jihaad, judiciary, carrying the Islamic Da’wah to establish the Islamic State, generating industries and sciences or areas of knowledge that the Ummah is in need of, preparing the necessary force to strike fear into the enemy and praying over the dead and burying them.