Sunan Ibn Majah
147
Sahih+2

It was narrated that Hani bin Hani said that:'Ammar entered upon 'Ali and he said: "Welcome to the good and the purified. I heard the Messenger of Allah say: 'Ammar's heart overflows with faith (Literally, up to the top of his bones)

SahihAl-Albani
SahihMuhammad Fouad Abd al-Baqi