Story of God Shani Dev and Hanumanji

God Hanuman is the incarnation of Lord Shiva. He is a great devotee of
Lord Rama. He helped to Rama in the war with Ravan. Mace (Gada in Hindi)
is the weapon of this God. The other name of Hanumanji isMahaveer, Pavan
Suta, Bajarangbali, Kesharinandan etc. Here, is the story of God
shanidev & Hanumanji.

As per Hindu Epic Ramayana, When Hanuman went to the Lanka in search of
Sita mata (Wife of Lord Rama). After meeting with Sita mata, when
Hanumanji was coming back, he met with many God who were in clutch of
Rakshash (Evil) King Ravan. God Shanidev was also there. Hanumanji
helped freeing shanidev and getting out of Lanka. Because of Hanumanji
helped Shanidev they both became friends. Here, Shanidev Promised to
Hanuman that anyone who prayed to him (Hanuman), he would be rescued
from the baleful effects of Shanidev.

Other story of Shanidev and Hanumanji :

God Surya Dev is the Father of Shanidev. Surya dev is also the Guru
(Teacher) of Hanumanji. After the completion of course, Surya dev said
to Hanuman, “You have become adept in all forms of wisdom and weapons,
now go to your mother Anjani” But Hanumanji requested to Surya dev “Give
me an opportunity to repay for your tutelage” Suryadev said to Hanuman,
“my wayward son shani is the cause of my sorrow only, Go and bring that
wayward son of mine back to me”. Listening to the order of Surya dev,
Hanuman went to Shanilok. When he was going to shanilok many planets
tried to stop him but they were unable. When Shanidev saw hanuman he
asked to him, “Who are you? Why are you come here? Do you not fear with
die?” Hanumanji replied, “I am Hanuman, The disciple of Lord Surya. Lord
Shani you have all power & virtues, but your greatest drawback is
disobeying your father. It’s not good & it’s the greatest sin. I have
come here to take you to your father.” Hearing all this Shani became
angry & said, “You don’t know my power, Powerful god also trembled with
my power so better thing for you go back immediately otherwise I will
burn you” Hanuman replied, “I have not came here to go back”. Then Shani
Dev crooked gaze on Hanuman but shanidev could not burn him so, Shanidev
sat on his head. They were inside a room. Immediately Hanuman increased
his size because of which shani pressed between hanuman and the ceiling.
When the pain was unbearable, Shani requested to God Hanuman to release
him. When shanidev became free from Hanuman then shanidev Promised to
Hanuman, “Anyone who will worship you on Saturday, I will never be
terminate them.” After that shanidev & hanumanji went to Suryadev.
Shanidev became happy to see them.