Is A Prayer Deemed Valid If One Recites The Obligatory Recitation (Qiraat) Without Moving Lips But Only By Thinking Them?

Is a prayer deemed valid if one recites the obligatory recitation (qiraat) without moving lips but only by thinking them?

Recitation ( qiraat) is not valid if a person who has the ability to speak thinks about Fatiha and other surahs in prayer without moving his/her tongue and lips or making any sound. Such people will not be deemed to have performed the qiraat, which is a pillar of prayer. One needs to recite them in a voice s/he can hear him/herself, like whispering, by pronouncing letters correctly and in a manner that will not disturb the people around (Marghinani, al-Hidayah, I, 352-353).

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