Secondly. The Prophets adhered to it and followed it, which shows clearly that it is not an area for ijtihaad (independent interpretation and Judgement), so we do not find,

(1) Any Prophet beginning his call with Sufism.
(2) Another one beginning with philosophy and theological rhetoric (Kalaam).
(3) And others beginning with politics.

Rather we find that they all followed a single methodology, and all gave the same primary importance to Tawheed of Allaah.

Thirdly, Allaah made it obligatory upon our noble Prophet, whom Allaah made it obligatory upon us to follow. that he should follow then and their methodology. So He said, after mentioning eighteen of them,

Meaning: They are those whom Allaah has guided. so follow the way and guidance which they were upon.

And he followed their way by beginning with Tawheed and giving the greatest importance to it.

Fourthly, Since their call in its most complete form was to be seen in the call of 1braaheem, alaihis- sallaatus was-salaam, Allaah further emphasised the matter and ordered our Prophet Mohammed (sallallaahu alayhi wasallam) to follow his methodology. He says,

Meaning: Then We revealed to you, 0 Muhammad, that you should follow the religion of Ibraaheem who was a Muslim upon the true religion and was not one of those who worshipped idols and associate partners with Allaah.''

So the order to follow Islam covers adherence to his religion which is Tawheed and fighting against Shirk, It also covers following his methodology in beginning by calling to Tawheed. Then Allaah, the Most High, further emphasised this order also, ordering the Ummah of Muhammad (sallallaahu alayhi wasallam) to follow the way and the religion of this Prophet who was upon the true religion, So He, the Most High says,

Meaning: 'Say, 0 Muhammad, Allaah has indeed spoken the Truth, so follow the religion of Ibraaheem who was upright, upon the religion of Islaam, and he did not make any share of his worship for any created being.'

Therefore the Ummah of Islaam is commanded to follow his religion and way. So just as it is not permissible to act contrary to his religion, then likewise it is not permissible to turn away from his methodology in calling to Tawheed and fighting Shirk and its manifestaions and causes.

Fifthly, Allaah, the Most High, says,

Meaning: So if you disagree in any of the affairs of your religion, then refer it back to the Book of Allaah and the, Sunnah of His Messenger, if you truly believe in Allaah and the Last Day. That is better for you in this world and the Hereafter, and better in its final consequences.

So if we refer back to the Quraan we are informed that ail of the Messengers had as their 'Aqeedah the 'Aqeedah if Tawheed and that call began with Tawheed, and that Tawheed is the most important and greatest thing which they came with. We also find that Allaah ordered our Prophet to follow them and to follow their methodology. Then of we also refer back to the Messenger we find that this call from start to finish gave the greatest importance to Tawheed and to fighting Shirk and its manifestations and causes, and we have already seen this in what has preceded.