the mother of the faithful believers, I requested the Prophet (ﷺ) permit me to participate in Jihad, but he said, "Your Jihad is the performance of Hajj."
Sahih al-Bukhari Book 56, Hadith 91
← Previous Hadith that a man asked him. "O Abu '`Umara! Did you flee on the day (of the battle) of Hunain?" He replied, "No, by Allah, the Prophet (ﷺ) did not flee but the hasty people fled and the people of the Tribe of Hawazin attacked them with arrows, while the Prophet (ﷺ) was riding his white mule and Abu Sufyan bin Al-Harith was holding its reins, and the Prophet (ﷺ) was saying, 'I am the Prophet (ﷺ) in truth, I am the son of `Abdul Muttalib.' "

Sahih al-Bukhari Book 56, Hadith 90 Next Hadith → the mother of the faithful believers: The Prophet (ﷺ) was asked by his wives about the Jihad and he replied, "The best Jihad (for you) is (the performance of) Hajj."

Sahih al-Bukhari Book 56, Hadith 92