Ahmad b. Muhammad b. Yahya al-`Attar narrated to us. He said: Sa`d b. `Abdullah narrated to us from Ahmad b. Muhammad b. `Isa from his father from Muhammad b. Abi `Umayr from `Ali b. Abi Hamza from Abi Basir from al-Sadiq Ja`far b. Muhammad from his forefathers from `Ali . He said:

The Messenger of Allah (s) said: Surely, in Paradise there is a room whose outside could be seen from its inside, and whose inside could be seen from its outside. Those of my Nation who purified their words, fed people food, spread peace, and prayed at night while the people slept will inhabit it. So, `Ali said: O Messenger of Allah! Who will be able to do this from your Nation? So, he said: O `Ali! Do you not comprehend what the purification of words is? It is saying, when you awake and when you go to sleep, “May Allah be glorified, praise be to Allah, there is no god but Allah, and Allah is the Greatest (subhanallah, walhamdulillah, wa la ilaha illallah, wallahu akbar)” ten times. Feeding people food is the expense of a man on his family. As for praying at night when the people are asleep: whoever prays Maghrib, the final `Isha’, and the morning prayer in the mosque in congregation, it is as though he kept vigil all night. As for spreading peace: it is not being stingy in greeting every single Muslim with the salaam.