In October, after a good harvest of hundreds of grains, King Wu marched toward Fengyi with hundreds of official banners flying and thousands of chariots. Madam Taihuo was sitting in the phoenix chariot. Halfway through the journey, she suddenly felt pain in her abdomen. The palace maid hurriedly asked the palace maid to stop the horse and called the imperial physician to examine it carefully. The imperial physician said to King Wu Jifa: "Congratulations, your majesty, your wife's delivery date has arrived." King Wu hurriedly asked the palace maid to find the baby. Grandma, not long after, a baby boy with a tiger-like head was born. The child's two little hands kept shaking. The midwife cut the umbilical cord and carefully opened the child's little hands. She saw that the palm of her hand was holding the word "Kang", and there were several winding rivers around the word "Kang". King Wu summoned Dazai for a divination, and Dazai explained the line and said: "This child will be a ruler of the country in the future. The destiny of the Zhou family has been sent to the Zhou family. The city will be in Kangdi, and the country will be located on the bank of the Qi River. The country will be blessed for thousands of years."
King Wu was overjoyed and rewarded the Dazai, midwives, maids and others, and continued his march to Fengyi. This boy is Ji Feng, the ninth son of King Wu, and Uncle Kang, the ancestor of the Wei Kingdom.