Narrated to me my father (R.A), from Abdullah bin al-Hasan al-Muaddab, from Ahmad bin Ali al-Asbhani, from Ibraheem bin Muhammad al-Saqafi, from Muhammad bin Dawood al-Denoori, from Manzar al-Ashari, from Saeed bin Zayd, from Abi Qanbl, from Abi Jarood, from Saeed bin Jabeer, from Ibn Abbas, from Prophet (P.B.U.H):
Prophet Muhammad (P.B.U.H) said:
"The ring on the door of paradise is made of red yaqoot placed upon planks of gold. When the ring knocks upon the planks, it rings and says "Ya Ali (A.S)"
[Source: Amaali - Sheikh Sadooq, Majalis. 86, Hadees. 13]
ل
Al-Hussain bin Muhammad, from Mualla bin Muhammad, from Muhammad bin Muslim, from Al-Husain bin Nasr, from his father, from Umr bin Shimr, from Jabir who said:
Abu Jafar (A.S) intended to ride towards few of his Shias to return to them. So He said, "O Jabir, Join Me". So I followed Him.
And we had not reached to the end of the door that a small boy came out unto us.
Abu Jafar (A.S) said to him, "What is your name"? He said, "Muhammad".
Abu Jafar (A.S) said to him, "What is your title (Kuniyyah)"? He said, "Ali".
Then Abu Jafar (A.S) said to him, "Verily you are protected from Saitan, a severe protection. Verily when Saitan hears a caller calling "Ya Muhammad" or "Ya Ali", he melts like the melting of the lead. And when saitan hears a caller calling with the name of our enemy, he starts swinging (with joy) and boasts about his own-self".
[Source: Al-Kafi, Vol. 6, Pg. 20]
Source: Marefate AhleBait(A.S).com
source : sibtayn