The Shaykh gave an example of how a scholar sometimes falls into contradiction in authenticating and weakening hadiths, and he used himself as the example.

The Shaykh : ... And I will not take you far; I will give you an example of myself so that you do not say that the Shaykh does not make mistakes. Rather, the Shaykh does make mistakes, but his mistake is better than the mistake of others because he researches and exerts effort, and so on. It is inevitable that he will fall into error. As for the one who does not research, his errors will be numerous. What is the example? Yesterday, or the day before yesterday, a man from our brothers, a student of knowledge from Aleppo, came to me and drew my attention to one hadith. I say this so that you may correct what you have. It is one hadith found in my book *Sahih al-Jami'* and *Da'if al-Jami'*. The first thing that came to my mind was that this type of case has many examples in the two books. But upon research and verification, it appears that... the one who erred, and the reason is that the hadith is in one book with one wording and in the other book with a different wording, and one contains what the other does not. Therefore, one was placed in the *Sahih* and the other in the *Da'if*. This is part of the precision of knowledge. But when he showed me the text, it was not of this type at all. The text This is the text of the hadith or its meaning. We included it in the *Sahih* and we included it in the *Da'if*... until I study the matter calmly and carefully. In one of the books, I cited the hadith with *Silsilat al-Ahadith al-Sahihah*... The error was based on an error in one of the hadiths. I included it in the *Sahih* and the other I included... When I returned, I found the chain to be the same! Do not be surprised if scholars of hadith differ among themselves... And I found the chain to be the same, but I quickly realized the error. The error involved two men, and this is one of the causes of disagreement among scholars of hadith. Both men have the same name and the same father's name. The name of each resembles the other, with... Abdullah ibn Waqid. Here, Abdullah ibn Waqid is two people: one is from Harran and the other is from Herat, and he is famous in the books of hadith... He is the one from Harran, and his kunyah is Abu Waqid, and not... so that you understand me well. From my negligence, I thought that Abdullah ibn Waqid... in the hadith was mentioned by his kunyah, which is Abu Waqid, and if he was mentioned... Excuse me, he came mentioned as Abu Rajaa. Abdullah ibn Waqid Abu Rajaa is trustworthy, whereas Abdullah ibn Waqid Abu Waqid is weak. I was negligent in seeing the kunyah Abu Rajaa for Abdullah ibn Waqid, and I went on saying that Abdullah ibn Waqid is weak without... and without referring to the sources, so we weakened the hadith. In the *Sahih*... that Abdullah ibn Waqid is Abu Rajaa, so we placed it in the *Sahih*. When the brother came, I showed him the reason for this error. This is one person who falls into such a thing, so it is even more likely that one person falls into the error I fell into, and another falls into the correctness that I was negligent about, and so on. So the reason, we can summarize it, is that this person looked at a route of the hadith that the other did not look at, so he authenticated it, and that one looked at a hadith with a weak chain, so he weakened it. But if they met and understood each other and agreed on... the hadith, and it has many reasons. If we suppose the chain is the same, one authenticated it and one weakened it... like our Abu Waqid, Abu Waqid, the reason would be that the biographer of one of the two men found a certification for this one, and that one found a weakening for the other, but the weakening is stronger than the certification, and it may be the reverse. The important thing is, if this question has a benefit... it is to alert the attendees to two things: First, that disagreement is a natural matter for humans, and therefore we never hold it against the Imams of Fiqh, just as we do not hold it against the Imams of Hadith when they differed in it, because this matter is natural, and the reasons are natural, cosmic, and the Sunnah of Allah in His creation. But we take that as a means to draw people's attention to the fact that they must learn and exert effort as the previous Imams exerted effort, whether they were among the scholars of Fiqh or among the scholars of Hadith. And when the Fuqaha increase in the Ummah and the Muhaddithin also increase among them, disagreements decrease, whether they are Fiqh disagreements or Hadith disagreements. But when there is only one person in a field in some lands, the one exposed to error has no... his error. Therefore, I am very happy when I feel now that there are among our brothers in this town and in others who present my error to me, because I have begun to feel that we are reaping the fruits of spreading the Sunnah among people, and the science of hadith and the terminology of hadith. Whereas previously, and I am without doubt, like any... in any science, I was very prone to error... who would alert me? Why? Because I lived in this science alone. So we ask Allah, Mighty and Majestic, to awaken the Muslim Ummah to understand their religion by relying on the Book and the Sunnah, and to inspire the groups among them to perform the duty of this correct understanding and the scientific study of the science of the Sunnah. And this is sufficient, and praise be to Allah, Lord of the worlds.