One day the poet Thalibi recited an ode in the presence of Al Mansur, hoping for a reward. When he had finished, the Caliph said to him: "Will you have three hundred dinars from my treasury, or hear three wise sayings from my lips?" "Oh," said the poet, anxious to curry favor with his master, "durable wisdom is better than transitory treasure." "Very well," said the Caliph, "the first word of wisdom is: When your garment is worn, don't sew on a new patch, for it looks badly." "Alas! alas!" wailed the poet, "there go a hundred dinars at one blow." The Caliph smiled, and continued: "The second piece of advice is: When you anoint your beard, don't anoint the bottom of it, lest you soil your clothes." "Ah!" sighed the poet, "there go the second hundred." Again the Caliph smiled, and continued: "The third piece of advice-—-" "O Caliph," cried the poet in an agony: "keep the third piece of advice to yourself and let me have the last hundred dinars." Then the Caliph laughed outright and ordered five hundred dinars to be paid him from the treasury. _Al Mansur and Abu Muslim_ Abu Muslim was one of the chief generals of Es-Saffah, Al Mansur's brother and predecessor. On his accession Al Mansur became jealous of Abu Muslim's great power and influence, but sent him notwithstanding to put down a revolt raised by Abd Allah, the son of Ali. After several battles, Abd Allah fled and took refuge in Bassorah, the whole of his camp and treasure falling into the hands of Abu Muslim. Al Mansur sent Yaktin bin Musa to take charge of the treasure. On appearing before Abu Muslim, Yaktin said to him: "Peace be to thee, Emir!" "A murrain on thee, son of a prostitute!" answered the general. "They can use me to shed my blood, but not to guard a treasure." "My lord," answered the messenger, "what has put such thoughts into your head?" "Has not thy master," answered Abu Muslim, "sent thee to confiscate all the treasure which has come into my possession?" "May my wife be divorced forever," said the Caliph's agent, "if he has not sent me simply and solely to congratulate you upon your victory and success!" On these words Abu Muslim embraced him and made him sit by his side. Notwithstanding this, however, when he had bidden him farewell, he said to his officers: "By Allah! I know this man will divorce his wife, simply out of fidelity to his master." When he had resolved to revolt against Al Mansur, Abu Muslim left Mesopotamia, and set out for Khorassan; while on his part Al Mansur left Anbar, and encamped near the city of Rumiyeh. From thence he sent the following message to Abu Muslim: "I wish to consult you on matters which can not be confided to a letter; come hither, and I shall not detain you long." Abu Muslim read the letter, but would not go. Al Mansur then sent to him Djerir, son of Yezid, the most accomplished diplomatist of his time, who had already made the acquaintance of Abu Muslim in Khorassan.