Hakim al Umma Maulana Ashraf Ali Thanvi (Allah have mercy on him) instructed,
‘Neither have conviction about, nor associate with a person who appears to be a Sufi but contravenes Sharia (laws). This is irrespective of his having unveiling (kashaf) or miraculous incidents (karamat).
However, do not criticize anyone without a genuine reason.’
Ta’leem ut Talib, #9, p23