It is written in the book Kamiluz Ziyarat ( chp 26 tdn no 7) :
Abu Basir says: I was speaking with Imam Sadiq (a.s.) when one of his sons entered. Imam (a.s.) said: ‘May Allah bless you’; and then embraced and kissed him.
Then he (as) said: ‘May Allah degrade those who dishonored you. May Allah avenge those who oppressed you. May Allah disappoint those who deserted you. May Allah curse those who slain you. May Allah be your guardian, protector and helper. Prophets, truthful ones, martyrs, angels of the heavens and our ladies have been weeping on you’.
Then Imam (a.s.) began to weep and said: ‘Abu Basir, when I look at the children of Imam Husain (a.s.), grief overcomes me when I remember what was meted out to them and to their father.’
‘Abu Basir, Fatima (s.a.) weeps and laments over Husain (a.s.) as a result of which Hell sighs so intensely, that if the keepers of Hell who also hear her voice did not prepare themselves to restrain it, it would burn all the inhabitants of the earth with its blazing fires and sparking fumes. So the keepers restrain it and hold its doors tightly closed as long as Fatima (s.a.) laments. Because they fear for the inhabitants of the earth. But Hell is not pacified until Fatima’s lamentation ends.’
‘Abu Basir, the seas almost split apart and collide with each other. There is a dedicated angel for every drop of water and they prevent every drop from boiling with their wings; keeping it together because of their fear for this world and everything in it. The angels remain in fear and cry for her crying. And they pray to Allah and beseech Him, after which the inhabitants of the Arsh and those around it beg Allah.’
‘Then their voices are raised in glorification of Allah, all because of their fear for the people of the earth. Even if one of their voices reached the earth, all the inhabitants would swoon, mountains would crumble and the earth would shake with its inhabitants.’
Abu Basir said, “May I be sacrificed on you! It is really a serious matter.”
Imam (a.s.) said, “That which you have not heard is greater. Abu Basir! Don’t you want to be of those who support Lady Fatima (s.a.)?”
When I heard this, I cried so much that I could not speak nor could the Imam (a.s.) do, because he was crying so intensely. Then he went to his prayer room and began to recite a supplication.
So I left the Imam in that state. I could not eat or sleep that night. The following morning, I was fasting and was in extreme fear when I went to Imam (a.s.). I heaved as sigh of relief when I saw that he had calmed down; and I praised and glorified Allah, because no chastisement or calamity had befallen me