Explanation and illustration of the rule: "Whoever knows is a proof against whoever does not know," with examples given for it.

The Shaykh : If one memorizes this rule, which is: "Whoever knows is a proof against whoever does not know", one is relieved of many problems. We will enrich what we are discussing by first applying it or providing some other models and examples of this rule. On the other hand, since the one who made the negation in this hadith is Aisha, we will bring another negation from her, for she said (may Allah be pleased with her): She says: Meanwhile, al-Bukhari and Muslim narrated in their *Sahihayn* from the hadith of Hudhayfah ibn al-Yaman (may Allah be pleased with him), who said: So what do we do? Do we lie to Hudhayfah in obedience to the command of Aisha, who said, "Whoever tells you that the Messenger of Allah (peace and blessings be upon him) urinated while standing, do not believe him"? Do we lie to Hudhayfah? He is truthful just as she is. No, we do not lie to her, nor do we lie to him. Rather, we say: each of them reported what he knew. Aisha did not know that thing which Hudhayfah knew, and this is natural, because Aisha was one of the women who stayed in the homes, and the word of Allah (Blessed and Exalted is He) fell upon her before any other woman in the world: Therefore, she did not go out whenever the Messenger (peace be upon him) left his house, because she was a woman and her duty was to remain in her home. As for Hudhayfah, he was a man, so he witnessed the departure of the Messenger (peace be upon him) and his going out and coming back outside his home more than his wife Aisha (may Allah be pleased with her). Conversely, she knew more of the internal, domestic, and marital matters than all the Companions (may Allah be pleased with them all). Therefore, it did not happen that she saw the Messenger (peace be upon him) urinating while standing. Why? Because he was in his house, so he did not need to urinate while standing. But he might go out of the house, to a garden, to a wilderness, or to a desert, where he would need to urinate. The situation might be such that it was easier for him to urinate while standing. So the men saw him, but the women did not see him. Thus, the scholars said: the action is based on the hadith of Hudhayfah because it is affirmative, not on the hadith of Aisha because it is negative, and the affirmative takes precedence over the negative. This is how the rule is applied by reconciling some hadiths that appear to differ.
Her statement does not negate that the Messenger (peace be upon him) sometimes laughed, and some of the Companions of the Messenger (peace be upon him) witnessed this from him. Rather, he used to smile (peace and blessings be upon him and his family), meaning in most of his times.