Raising Blame from the Imams of Islam, Sheikh al-Islam Ibn Taymiyyah

About the author of Raf' al-Malam 'an al-A'imma al-A'lam (Removing Blame from the Eminent Imams) 

Taqi al-Din Abu al-Abbas Ahmad ibn Abd al-Halim ibn Abd al-Salam al-Numayri al-Harrani (661 AH-728 AH / 1263 CE-1328 CE), known as Ibn Taymiyya, was a jurist, hadith scholar, expert and independent Muslim scholar (mujtahid), and one of the scholars of Ahl al-Sunnah wal-Jama'ah. He was among the most prominent Muslim scholars of the second half of the 7th century AH and the first third of the 8th century. Ibn Taymiyya the Hanbali learned Hanbali jurisprudence and its principles from his father and grandfather, and as one of the diligent imams of the school, he drew his evidence from the Book and the Sunnah

About the book Raf' al-Malam 'an al-A'imma al-A'lam 

A book from Dar al-Nil wal-Furat by Ibn Taymiyya, Removing Blame from the Eminent Imams: just as God Almighty commanded in His Book regarding the Companions and those who came after them, since attaining knowledge of all rulings is not available to all people, scholars and believers alike, in order to honor the religion of God and deepen their understanding of the texts contained in the Book of God

It was common for some of their opinions to be disputed, and there were many fatwas on the same subject. Yet in the first century, the era that witnessed the Messenger of God (peace be upon him), they did not consider it obligatory or permissible for people to attack one another over these disagreements. Even where he could not find anything, every Muslim adopted views having examined the evidence and acted upon it

Then the enemies of this religion exploited this conflict, stirring up controversy and widening the divisions as a result. The efforts of the righteous were therefore directed at gathering the scattered and returning people to their origins, and among the greatest of these warnings is that of Shaykh al-Islam Ibn Taymiyya al-Harrani al-Dimashqi