Can my prayers in the Grand Mosque count as making up for missed prayers, knowing that praying there is equivalent to one hundred thousand prayers?

The questioner is congratulated on his steadfastness and reminded of the great importance of prayer. He is informed that his prayer in the Sacred Mosque (Masjid al-Haram) carries immense reward, but this is specific to the reward and does not extend to sufficiency. He must make up all the prayers he missed after puberty until he is reasonably certain that he has fulfilled his obligation.