In order to substantiate that the Messiah is alive, one may perhaps argue as to whether Allah Almighty is powerful enough to have taken him alive to heaven. However, this demonstrates an ignorance concerning the power of God and His… We, for our part, are foremost in the faith and belief that:
أَنَّ ٱللَّهَ عَلَىٰ كُلِّ شَيۡءٍ قَدِيرٌ 
Undoubtedly, Allah the Exalted has power over all things and we believe that He can invariably do whatsoever He wills. However, He is free and pure from such acts that are at variance with His perfect attributes. He is an enemy to all that which opposes His teachings. In earlier times, the doctrine concerning the life of Jesus was just an error, but today, this error has taken on the form of a serpent intent on devouring Islam. In the previous age, there was no fear of any harm on account of this error, as this was nothing more than an inconsequential mistake. But after Christianity expanded and its followers began to proclaim that the life of the Messiah was a very powerful argument in support of his divinity, this has become a perilous matter. The Christians persistently argue in the most emphatic manner that if the Messiah was not God, how then could he be seated on the divine throne? Moreover, if it is within the ability of a mortal to ascend to heaven alive, why then, until now, has no one ever ascended to heaven since Adam?
Hazrat Mirza Ghulam Ahmad (as), The Advent of the Promised Messiah (Tilford, Surrey: Islam International Publications Ltd., 2016), 3-5.
 Word(s) omitted due to scribal error. [Publisher]
 The Holy Qur’an, 2:107.