Who can help me translate the following classical Chinese in The biography of Master Sanzang?

The next day, the sun will set and we will enter the grass. Soon, the Hu people (as mentioned above, his surname is Tuo) and an old Hu people will arrive in a race on a thin and old black horse ... Hu Weng said, "Master (Sanzang) must go west and can ride my horse. This horse has traveled back and forth between the west and here fifteen times. It has strong feet and knows the way. The master's horse is young and can't go far. " Sanzang remembered that he was in Chang 'an and was determined to go to the West. He Mingda, a warlock, chanted scriptures, chanted incantations and looked at the stars. Most of them were right. Sanzang told him to travel westward, and Hongdao said, "Master, you can go. It looks like riding an old red and thin horse with iron in front of the paint saddle bridge. " (Sanzang) checked and found that the horse that Hu Weng was riding was really thin and red, and there was iron in front of the painted saddle, which was consistent with what He warlock said. He thought it was appropriate and immediately changed to a horse.