After Abdul Malik there was no opposition to the Caliphate of his four sons...
After Abdul Malik there was no opposition to the Caliphate of his four sons: These four being Valid, Sulaiman, Yazid and Hesham while according to Sulaimans last will, Umar Ibn Abdul Aziz held the Caliphate after him and before Yazid. The twelfth person in this group upon whom the people unanimously agreed was Valid ibn Abdul Malik who ruled for four years". Ibn Hajar the great Shafite traditionalist and Canonist said: "This is the best explanation for the aforementioned Hadiths".
Ibn Kasir, the famous historian, traditionalist and Commentator of the eighth century (A.H) writes: The way followed by Bayhaghi and a group who agreed with him has much room for hesitation: this group saying that the Hadith speaks of the Caliphs who ruled successively until the rule of Valid ibn Yazid Ibn Abdul Malik the libertine. The reason I say this is that no matter how we look at it the Caliphs up until the above mentioned Valid are more than twelve.
Our proof of this is such: the Caliphate of the first four Caliphs, Abu Bakr, Umar, Uthman and Ali was according to unanimous agreement and as such indisputable.........after them there was Hassan ibn Ali because Ali left testimony as to him and his Caliphate and the people also pledged their allegience to him.........up until the time that he made peace with Muavieh........After Muavieh there was Yazid and after him Muavieh Ibn Yazid, then Marwan and Abdul Malik ibn Marwan, his son Valid Ibn Abdul Malik, afterwards Sulaiman Ibn Abdul Malik, Umar ibn Abdul Aziz, Yazid ibn Abdul Malik and then Hesham ibn Abdul Malik who were rulers and Caliph.
This group as such consists of fifteen persons. Even so, after these there was Valid ibn Yazid ibn Abdul Malik (Bayhaghi names as the twelfth person). And if we also take into account the rule of Abdullah ibn Zobair who was before Abdul Malik, this group amounts to sixteen persons.
Despite all of the difficulties with regard to the twelve Caliphs approved of by the Prophet (by counting from the start of the Caliphate), Yazid ibn Muavieh is included, while Umar Ibn Abdul Aziz whom all the great men praised and eulogized is exclused. This is even despite the fact the he has been included in the group of orthodox Caliphs, everyone agreeing on his justice and the fact the at his rule was one of the most just in Islamic history. Even the heretics have agreed on this matter.