Musannaf Ibn Abi Shaybah 9140 — What is mentioned on the excellence

Sayyiduna Abu Umamah (may Allah be pleased with him) said: I said: "O Messenger of Allah, tell me of a deed that will admit me into Paradise" (or words to that effect). He said: "Keep to fasting, for there is nothing like it." After that, the state of Sayyiduna Abu Umamah was that smoke was seen from his house in the daytime only when a guest was at his house.