He was known both as Abu Abdullah and Baqir. He was distinguished for his knowledge of the abstruse sciences and for his subtle indications as to the meanings of Quran. There are many Karamat (miracles) associated to him. It is related that on one occasion the king with the aim to kill him, summoned him to his presence. When Baqir came to him, the king begged his pardon, bestowed gifts upon him, and allowed him to leave courteously. When courtiers asked why he had acted in that manner. The king replied that when he entered he saw two lions, one on his right side and one on his left, who threatened to kill him if he had attempted to do him any harm.

In his commentary of the Quran verse, “, whoever rejects evil and believes in Allah,:” (Q 2:256), Baqir said:

“Anything that diverts one from contemplation of Allah is his taghut (idol), so one has to see what veils him from contemplation of Allah and needs to get rid of it to make union with the Truth and get free from the veil. And one who is veiled has no right to be claimant of the proximity of the Truth.

Baqir after completing his litanies at night used to have loud Manajat (secret talk with Allah):

“O my Allah and my Lord! night has fallen, and the power of monarch has ceased, and the stars are shining in the sky, and mankind are asleep and silent, there is no crowd at the doors of the rich and the Umayyad have shut their doors and are being guarded by the watchmen, and all the needy have left for their homes.

But Thou, O Allah, art the Living, the Lasting, the Seeing, the Knowing. Sleep and slumber cannot  overtake Thee. He who does not acknowledge Thy Essence is unworthy of Thy bounty.

O Allah nothing can withholds Thy Essence, neither eternity is impaired by Day and Night, Thy doors of Mercy are open to all who call upon Thee, and Thy is the owner of all; Thou dost never turn away the beggar, and no creature in earth or heaven can prevent the true believer who implores Thee gaining access to Thy Court.

O Lord, when I remember death and the grave and the reckoning, how can I take joy in this world? Therefore, since I acknowledge Thee to be One, I love Thee; I beseech Thee to give me peace in the hour of death, without torment, and pleasure in the hour of reckoning, without punishment.”

He used to do this Manajat weeping. On asking that why did he cry so much, he replied:

Jacob lost only one son for whom he wept so much that he lost his eye sight. I have lost my eighteen family members, is it not sufficient argument for me to cry.

Source: http://www.scribd.com/doc/31428693/Kashful-Mahjoob-in-English