So dear friends! Since it is the Sunnatullah, from time immemorial, that God Almighty shows two Manifestations so that the two false joys of the opponents be put to an end, it is not possible now that God should relinquish His Sunnah of old. So do not grieve over what I have said to you; nor should your hearts be distressed. For it is essential for you to witness the second Manifestation also, and its Coming is better for you because it is everlasting the continuity of which will not end till the Day of Judgment. And that second Manifestation cannot come unless I depart.
But when I depart, God will send that second Manifestation for you which shall always stay with you just as promised by God in Barahin-e- Ahmadiyya. And this promise is not for my person. Rather the promise is with reference to you, as God [addressing me] says: I shall make this Jama‘at who are your followers, prevail over others till the Day of Judgment. Thus it is inevitable that you see the day of my departure, so that after that day the day comes which is the day of everlasting promise. Our God is He Who keeps His promise and is Faithful and is the Truthful God. He shall show you all that He has promised. Though these days are the last days of this world and there are many a disaster waiting to happen, yet it is necessary that this world continues to exist until all those things about which God has prophesied come to pass.”
(THE WILL, PP. 5-8)