“It is not an easy task to journey to far-off countries and foreign lands. Although it is true that travel has become more convenient in this day and age, who can know for certain whether they will return from the journey alive? It is not easy to leave behind small children, wives, other relatives and dear ones. These people are open-heartedly leaving behind their businesses and affairs unattended and in a state of danger to undertake this journey, which I believe is worthy of immense spiritual reward. Firstly, they will be worthy of a reward from God because they are setting out on this journey purely to manifest the greatness and Unity of God Almighty; secondly, they will receive a reward on account of the hardships and difficulties that they will have to bear during the course of this trip.
Allah the Exalted does not waste a good deed performed by anyone:
فَمَنۡ یَّعۡمَلۡ مِثۡقَالَ ذَرَّۃٍ خَیۡرًا یَّرَہٗ
Then whoso does an atom’s weight of good will see it. [Surah az-Zilzal, Ch.99: V.8]
Now when he does not allow for even an ounce of goodness performed by anyone to go in vain, can the spiritual reward of such an important journey, which almost resembles a migration, go without recompense from God? Of course not. Devotion and loyalty, however, are necessary. One must shun ostentation and the desire for fame and self-renown. I believe that one cannot bear the trials and tribulations of land and sea, and take upon themselves a kind of death, unless they are filled with sincerity. A large number of brothers will continue to pray for these men and I shall also continue to offer prayers for them that may Allah the Exalted make them successful in this mission and return them to us safe and sound. The truth is that even the angels will pray for them and shall accompany them on the way.”
(Hazrat Mirza Ghulam Ahmadas, Malfuzat, Volume II, pp. 54-55)