"Ironically, one of the few things that Indian and Pakistani textbooks seem to agree on is in fact a falsehood: namely, that Islam grew in precolonial India through the agency of Sufi saints. There is little contemporary evidence for such a thing. Generally speaking, Sufis were not interested in converting Hindus."
January 1, 1970
https://en.wikiquote.org/wiki/Richard_M._Eaton