The Prophet ﷺ was the best role model and teacher for the Muslim Ummah, and our source of guidance on all matters of peace and war. In this hadeeth, Anas ibn Maalik (may Allah be pleased with him)narrated that,“Whenever Allah's Messenger ﷺ attacked any given people, he ﷺ would never attack them till it was dawn. If he ﷺ heard the Adhaan (i.e., call for prayer) he would delay the fight,” as it would be indicative of their Islam, “and if he did not hear the Adhaan,” being a manifest sign of their disbelief, “he ﷺ would attack them immediately after dawn.” This means that whenever the Prophet ﷺ did not know for sure whether a given people had embraced Islam and were edified on it before attacking them, he ﷺ would wait until dawn to see whether or not they would raise the Adhaan. If he ﷺ heard the Adhaan, he ﷺ would refrain from attacking them, otherwise, he ﷺ would proceed. He (may Allah be pleased with him) added: “We reached Khaybar at night,” to conquer it in 7 A.H. Khaybar was a village inhabited by Jews, about 153 km from Al-Madeenah on the route to Shaam. The Prophet ﷺ waited until dawn and then attacked them. It was narrated in Saheeh Al-Bukhaaree and Saheeh Muslim that Allah's Messenger ﷺ reached Khaybar at night, and it was his habit that, whenever he ﷺ reached the enemy at night, he would not attack them till it was morning. When it was morning, the Jews came out with their spades and baskets, and when they saw him (i.e., the Prophet ﷺ), they said, "Muhammad! By Allah! Muhammad and his army have arrived!" The Prophet ﷺ said, "Khaybar is (already) destroyed, for whenever we approach a (hostile) nation (to fight them), {then evil is the morning of those who were warned.} [Quran 37:177]." The hadeeth underlines the Prophet’s precautions before fights, fearing that he ﷺ would mistakenly kill Muslims (when conquering non-Muslim lands)..