The Prophet (ﷺ) used not to enter any house in Medina except the house of Um Sulaim besides those of his wives when he was asked why, he said, "I take pity on her as her brother was killed in my company. "
Sahih al-Bukhari Book 56, Hadith 60
← Previous Hadith Allah's Messenger (ﷺ) said, " He who pre pares a Ghazi going in Allah's Cause is given a reward equal to that of) a Ghazi; and he who looks after properly the dependents of a Ghazi going in Allah's Cause is (given a reward equal to that of) Ghazi."

Sahih al-Bukhari Book 56, Hadith 59 Next Hadith → Once Musa bin Anas while describing the battle of Yamama, said, "Anas bin Malik went to Thabit bin Qais, who had lifted his clothes from his thighs and was applying Hunut to his body. Anas asked, 'O Uncle! What is holding you back (from the battle)?' He replied, 'O my nephew! I am coming just now,' and went on perfuming himself with Hunut, then he came and sat (in the row). Anas then mentioned that the people fled from the battle-field. On that Thabit said, 'Clear the way for me to fight the enemy. We would never do so (i.e. flee) in the company of Allah's Messenger (ﷺ). How bad the habits you have acquired from your enemies!"

Sahih al-Bukhari Book 56, Hadith 61