Mukhtasar Bukhari (Abridged) 690 — What is reported

Umm al-Mu’minin Aisha (may Allah be pleased with her) said: (regarding the slain of Badr) The Prophet (peace and blessings of Allah be upon him) only said this: “They now know that what I used to tell them was true.” And indeed Allah the Exalted has said: “O Prophet! You cannot make the dead hear.” (Surah An-Naml: 80).