(31) باب مَا جَاءَ فِي الْمُصَافَحَةِ
Narrated Abu Umamah:
that the Messenger of Allah (ﷺ) said: "From the complete of visiting the ill is that one of you place his hand on his forehead" - or he said - "on his hand, and ask him how he is. And shaking hands completes your greetings among each other." (ID)
Reference (ID): Jami` at-Tirmidhi 2731 (ID)
In-book reference (ID): Book 42, Hadith 44 (ID)
English translation (ID): Vol. 5, Book 40, Hadith 2731 (ID)