Having left Bagdad, Mansur spent a year at Tashter, then he spent five years in travelling through Khorassan, Seistan and Turkestan. On his return to Bagdad, the number of his followers largely increased, and he gave utterance to many strange sayings which excited the suspicions of the orthodox. At last he began to say, "I am the Truth." These words were repeated to the Caliph, and many persons renounced Mansur as a religious leader and appeared as witnesses against him. Among these was Junaid, to whom the Caliph said, "O Junaid, what is the meaning of this saying of Mansur?" "O Caliph," answered Junaid, "this man should be put to death, for such a saying cannot be reasonably explained." The Caliph then ordered him to be cast into prison. There for a whole year he continued to hold discussions with the learned. At the end of that time the Caliph forbade that anyone should have access to him; in consequence, no one went to see him for five months except Abd Allah Khafif. Another time Ibn Ata sent someone to say to him, "O Sheikh, withdraw what you said, so that you may escape death." "Nay, rather he who sent you to me should ask forgiveness," replied Mansur. Ibn Ata, hearing this, shed tears and said, "Alas, he is irreparably lost!"
In order to force him to retract, he was first of all given three hundred blows with a rod, but in vain. He was then led to execution. A crowd of about a hundred thousand men followed him, and as he looked round on them, he cried, "True! True! True! I am the Truth!"
It is said that among them was a dervish who asked him, "What is love?" "Thou shalt see," Mansur replied, "to-day and to-morrow and the day after." And, as it happened, that day he was put to death, the next day his body was burnt, and on the third his ashes were scattered to the winds. He meant that such would be the results of his love to God. On his son asking of him a last piece of advice, "While the people of the world," he said, "spend their energies on earthly objects, do thou apply thyself to a study, the least portion of which is worth all that men and Jinn can produce—the study of truth."
As he walked along lightly and alertly, though loaded with many chains, they asked him the reason of his confident bearing. "It is," he said, "because I am going to the presence of the King." Then he added, "My Host, in whom there is no injustice, has presented me with the drink which is usually given to a guest; but when the cups have began to circulate he has sent for the executioner with his sword and leathern carpet. Thus fares it with him who drinks with the Dragon[28] in July."
When he reached the scaffold, he turned his face towards the western gate of Bagdad, and set his foot on the first rung of the ladder, "the first step heaven-*ward," as he said. Then he girded himself with a girdle, and, lifting up his hands towards heaven, turned towards Mecca, and said exultantly, "Let it be as He has willed." When he reached the platform of the scaffold, a group of his disciples called out to him, "What do you say regarding us, thy disciples, and regarding those who deny thy claims and are about to stone thee?" "They will have a two-fold reward, and you only a single one," he answered, "for you limit yourselves to having a good opinion of me, while they are carried on by their zeal for the unity of God and for the written law. Now in the law the doctrine of God's unity is fundamental, while a good opinion is merely accessory."
Shibli the Sufi stood in front of him and cried, "Did we not tell thee not to gather men together?"[29] Then he added, "O Hallaj, what is Sufism?" "Thou seest," replied Hallaj, "the least part of it." "What is then the highest?" asked Shibli. "Thou canst not attain to it," he answered.
Then they all began to stone him. Shibli making common cause with the others threw mud at him. Hallaj uttered a cry. "What," said one, "you have not flinched under this hail of stones, and now you cry out because of a little mud! Why is that?" "Ah!" he replied, "they do not know what they are doing, and are excusable; but he grieves me because he knows I ought not to be stoned at all."
When they cut off his hands, he laughed and said, "To cut off the hands of a fettered man is easy, but to sever the links which bind me to the Divinity would be a task indeed." Then they cut off his two feet. He said smiling, "With these I used to accomplish my earthly journeys, but I have another pair of feet with which I can traverse both worlds. Hew these off if ye can!" Then, with his bleeding stumps, he rubbed his cheeks and arms. "Why do you do that?" he was asked. "I have lost much blood," he answered, "and lest you should think the pallor of my countenance betokens fear, I have reddened my cheeks." "But why your arms." "The ablutions of love must be made in blood," he replied.
Then his eyes were torn out. At this a tumult arose in the crowd. Some burst into tears, others cast stones at him. When they were about to cut out his tongue, he exclaimed, "Wait a little; I have something to say." Then, lifting his face towards heaven, he said, "My God, for the sake of these sufferings, which they inflict on me because of Thee, do not inflict loss upon them nor deprive them of their share of felicity. Behold, upon the scaffold of my torture I enjoy the contemplation of Thy glory." His last words were, "Help me, O Thou only One, to whom there is no second!" and he recited the following verse of the Koran, "Those who do not believe say, 'Why does not the day of judgment hasten?' Those who believe tremble at the mention of it, for they know that it is near." Then they cut out his tongue, and he smiled. Finally, at the time of evening prayer, his head was cut off. His body was burnt, and the ashes thrown into the Tigris.
The high opinion entertained of Mansur Hallaj by Fariduddin Attar, as seen in the above account, has been echoed by subsequent Sufi writers. Jalaluddin Rumi, the great mystic poet, says of him: