Hawzah News Agency – The merciful prophet of Islam, peace be upon him and his household says:

ما زادَ خُشوعُ الجَسَدِ على‏ ما في القَلبِ فهُو عِندَنا نِفاقٌ.

'When humbleness of the body supersedes that which is in the heart then in our view it is hypocrisy.'

Source: al-Kafi, v. 2, p. 396, no. 6