"The day that I came to him, the Messenger of Allah (ﷺ) said: "Welcome to the riding emigrant.'" There are narrations on this topic from Buraidah, Ibn 'Abbas, and Abu Juhaifah.
Jami` at-Tirmidhi Book 42, Hadith 48
← Previous Hadith "I went to the Messenger of Allah (ﷺ) during the Year of the Conquest, and I found him performing Ghusl, while Fatimah was screening him with a garment. She said: "So I gave Salam and he said: 'Who is this?' I said: 'I am Umm Hani.' He said: 'Welcome Umm Hani'"

Jami` at-Tirmidhi Book 42, Hadith 47 Next Hadith → that the Messenger of Allah (ﷺ) said: "There are six courtesies due from a Muslim to another Muslim: To give Salam to him when he meets him, to accept his invitation when he invites him, to reply to him when he sneezes, to visit him when he is ill, to follow his funeral when he dies, and to love for him what he loves for himself."

Jami` at-Tirmidhi Book 43, Hadith 1