Is it permissible to make up missed prayers an hour or two before Fajr, instead of making them up with the times of the current obligatory prayers?

Whoever has missed a prayer, or many or few prayers, must hasten to make them up according to their ability. It is not sufficient to make up one prayer with each current prayer. The making up should be done as easily as possible, whether little or much, as long as it does not reach the point of negligence. There is no specific limit for it; rather, one should strive according to their capacity. It is obligatory to make up the prayers owed and it is not permissible to be negligent in this. Whoever prays five days' worth every day is not negligent. So, make up the missed prayers according to your ability, provided that making them up does not cause harm to your body or livelihood.