Conducting research about Islam is an important part of acquiring knowledge. It is essential to make sure that the right information from the right sources is chosen. There is a lot of inauthentic information that is commonplace nowadays. Because of the Internet, there is an even greater need to ascertain that the information is thoroughly researched and backed by authentic sources. This is because information is so easily distributed with the help of technology that anyone with or without knowledge can spread it. Proliferation of knowledge means both authentic knowledge and inauthentic made up stuff is out there.
Researching requires scrutinizing the material to see whether it is a work that has been referenced properly with primary sources of knowledge namely the Quran and Hadith directly or from secondary sources that take from works that are based upon the Quran and Hadith. This is no simple task. Very often well-intentioned people end up including questionable material in their works because they just couldn’t do the research or imagined that their sources were correct when they were in fact made up material. It can be confusing to a non-scholar to determine whether the secondary sources have been authenticated to be derived and based upon the accepted interpretation of the primary sources.
The safest way to do this research is to work with a few reputable scholars who will not shy away from providing you with the references when asked. As a rule of thumb, make sure to cross-references the sources yourself and not to rely on anyone blindly. As students of knowledge, we owe it ourselves to check and double-check information before accepting it.
Islamic knowledge has been preserved by Allah’s help. The Quran is protected against alteration as a promise of Allah. The Hadith is a primary source for Islamic knowledge right after the Quran. There has been a lot of work done by the scholars of Islam to authenticate Hadith. There is a fully developed science of Hadith which includes the chains of narrations, their content and the knowledge of the narrators of Hadith. The Prophet (ﷺ) explained the Quran to his companions and the reasons of the revelations of much of the Quran are preserved in the Hadith collections. Without the Hadith, the Quran can be interpreted incorrectly by people. Without the Hadith the knowledge of Islam is incomplete.
And Allah knows best.