Question: If a Musalli (a person performing Salaah) lifts his feet off the ground while in Sajdah – will his Salaah break?

Answer: A Musalli should keep his feet on the ground during the entire Sajdah.  If a Musaali lifts his feet off the ground for the duration of a Rukan of Salaah (the duration in which ‘Subhanallah’  can be recited 3 times)  –the Salaah will break.

However, if a person lifts his feet off the ground – for less than the duration of a Rukan – Salaah will not break, but, this action is nevertheless Makrooh (reprehensible). [Fathul Qadir 1:212]

AND ALLAH KNOWS BEST