Hazrat Mirza Bashiruddin Mahmud Ahmad (as) was the second successor of the Promised Messiah Hazrat Mirza Ghulam Ahmad (as). He was a distinguished Khalifa because his birth was foretold by a number of previous prophets and saints. Moreover, the Promised Messiah (as) received a Divine Sign for the truth of Islam as a result of his forty day's prayers at Hoshiarpur (India). God Almighty told him that a pure son would be born to him within the period of nine years. He had already published this prophecy regarding his Muslih Ma'ud (Promised Reformer) on 20 February 1886. In accordance with this divine prophecy and within the specified period, the Promised Son, was born to the Promised Messiah (as) on 12 January 1889 at Qadian. He was named Bashiruddin Mahmud Ahmad.
The prophecy about Muslih Ma'ud had also specified some special qualities of the promised son and reformer. For instance, it was foretold that he would be extremely intelligent and highly learned. His fame will spread to the ends of the earth and nations would be blessed through him.