The evidence for the obligation of asking people of knowledge when ignorant of the ruling.

The Shaykh : The Messenger of Allah (peace and blessings be upon him) emphasized this divine command in some of the authentic hadiths narrated from him. This is in the hadith recorded by Imam Abu Dawud in his Sunan, narrated by Jabir ibn 'Abd Allah al-Ansari (may Allah be pleased with him), that the Prophet (peace and blessings be upon him) sent out a secret expedition for jihad in the cause of Allah. The Muslims met the polytheists, and when the war was over, the result was that one of the Companions was injured with many wounds on his body. When morning came, it became clear that he had emitted semen; so it became obligatory for him to perform the full ritual bath, and he had those wounds. He asked those around him: Do they find a dispensation for him not to perform the full ritual bath because of those wounds? They answered in the negative and ordered him to perform the full ritual bath. Since this injured questioner was a believer in Allah and His Messenger, and responsive to the previous Qur'anic text: ; he had no choice but to comply with the fatwa of those who issued it, assuming that those who issued it were among the scholars who should be asked and who should answer. But the matter became clear beyond that or after that: that those who issued the fatwa were not among the people of knowledge. This became clear when the news of this injured man reached the Prophet (peace and blessings be upon him), and that when he complied with the fatwa of the muftis who ordered him to perform the full ritual bath, the outcome of his affair was that he died because of this unjust and oppressive fatwa. When his news reached the Messenger of Allah (peace and blessings be upon him), he said: , meaning: by their ignorant, unjust, ignorant fatwa, .
The point of this hadith is the last sentence: meaning: ignorance . So this hadith meets the verse in a complete meeting: . So the method of learning through the method of question and answer is an explicit Islamic method. Indeed, in many cases, this method is more beneficial for the masses than the lessons and scholarly circles that are held in many cases in some mosques or in other scholarly places; because the specific lessons are only of interest to those who have a desire to seek knowledge. As for the masses of people who do not have such a desire, they generally do not attend such a session. So for these people, it is more beneficial and more useful, and it is obligatory for each of them to ask about what concerns him in his religion. For this reason, we say: each of you should now direct what he has of a question in writing so that the questions are organized and compiled or combined so that much time is not spent answering questions that may be repetitive; so let the reader please proceed.