Does Hitching Up Pants while Going Down to Ruku or Sajdah Invalidate the Prayer?

Does hitching up pants while going down to ruku or sajdah invalidate the prayer?

While performing prayer, a person should avoid from behaviors that may harm the integrity of it; he needs to turn his heart to Allah just like he controls his organs. Prayer is invalidated if the behaviors that are contrary to the nature of prayer, called as “ amal kathir” are done. Simple acts called as “amal qalil”, on the other hand, do not invalidate prayer. Although we cannot make a certain definition for amal kathir, one of its definitions is moving so much that an onlooker thinks that the person is not in prayer. Amal qalil is just the opposite. According to another description, the acts that are generally done with two hands are accepted as amal kathir and the acts that are done with one hand are accepted as amal qalil. Hitching up dress or pants while going down to ruku or sajdah, unless it is obligatory, is makruh as the person deals with an unrelated job within prayer and contradicts with the khushu necessary in prayer; but it does not invalidate prayer (Kasani, Bada’i, I, 215; Marghinani, al-Hidayah, II, 16,17). But, hitching up pants in a way to be interpreted as amal kathir invalidates prayer.

Source: Presidency Of Religious Affairs The Turkey, High Board of Religious Affairs FATWAS