Shah Kaleemullah Dehlawi (Allah have mercy on him) wrote,

‘O brother! If you want to ascertain the status of the fuqara (sufis) these days then look up at their following of the Divine Law (Shariah). This is because the Shariah is the gold standard (to measure this).

It is on this standard of Shariah that the reality of a faqir becomes evident.’

Maktubaat e Kalimi, quoted in Tarikh Mashaikh e Chisht, volume 1, page 58