Zaid Alsalami, Shaykh Dr Zaid Alsalami is an Iraqi born scholar, raised in Australia. He obtained a BA from Al-Mustafa University, Qom, and an MA from the Islamic College in London. He also obtained a PhD from... Answered 5 years ago
Bismihi ta'ala
There are seven obligatory parts that must be touching the ground while in the state of prostration in Salat.
Tip of the toes of both feet, both knees, both palms, and forehead.
It is also mustahab for the nose to be touching earth as well.
And Allah knows best.